Everspring Chemical Co., Ltd., headquartered in Taichung, Taiwan, was established in 1988 to generate a wide variety of polymer additives. Transport properties such as diffusivity describe how rapidly molecules move by means of the polymer matrix. Global four-Chloronitrobenzene Industry 2015 Deep Industry Research Report is a professional and deep investigation report in this field. In the area of the Chemical Industry specially, it has turn out to be specifically useful, because chemical firms normally use chemical compounds, polymers and other raw supplies in bulk for producing their final merchandise. On the basis of application, the international polymer concrete market is segmented into asphalt pavement, developing and upkeep, industrial tanks and containment, prefabricated products for drainage systems, marine functions, and others. The business specialises in the contract manufacture of polymers and fine chemical substances and its list of consumers contain numerous blue chip organizations. The Worldwide Rubber Processing Chemical compounds Industry size is anticipated to reach USD six.ten billion by 2024, according to a new report by Grand View Study, Inc. The chemical manipulation of polymers dates back to the 19th century, although at the time the nature of these species was not understood. The majority of manufactured polymers are thermoplastic, which means that once the polymer is formed it can be heated and reformed over and more than again. For industry chain analysis, the report covers four B Acid upstream raw components, gear, downstream client survey, marketing and advertising channels, business development trend and proposals, which more particularly include useful info on four B Acid key applications and consumption, key regions and consumption, crucial global distributors , main raw supplies suppliers and speak to info, significant manufacturing gear suppliers and speak to details, significant suppliers and speak to Details, essential consumers and make contact with info, and provide chain connection report also presents four B Acid solution specification, manufacturing method, and solution expense structure and so forth. North America accounted for the major share of the worldwide polymer concrete market in 2017 and is anticipated to continue expanding at the identical pace throughout the forecast period. The Worldwide Heat Resistant Polymers Market place segmented on the basis of Item, Finish-Use, and Area. Polymer Chemistry delivers a logical presentation of topics that can be scaled to meet the requirements of introductory as nicely as much more advanced courses in chemistry, components science, and chemical engineering. Considerable rise in demand for green, high-functionality, and fuel-efficient tires in emerging countries is driving the market for rubber processing chemicals. Chemical sensors primarily based on conjugated polymers detect a variety of analytes and have the capability to detect these at low concentrations, this is since they contain a “Chromophore”, a chmical group contained inside the polymer where the energy for the excitation of an electron is extremely low 14. Worldwide rubber and plastics industries. Crucial properties of the intermediate materials are also shown. The report covers North America, Europe, APAC, and ROW it also covers the international SAP marketplace landscape and its development prospects in the coming years. In basic, polymeric mixtures are far much less miscible than mixtures of little molecule components. At times synthetic materials also have to be used to impart unique qualities to the finished item. Polymers are big molecules, a kind of macromolecule. These chemical compounds are widely used in a variety of industries for different purposes such as for coating and water proofing. Polymers are the components of past, present and future generations. Global four-Fluoro Biphenyl Market 2015 Deep Industry Analysis Report is a expert and deep analysis report in this field. The little molecules are named monomers and the long molecules are referred to as polymers. For industry chain evaluation, the report covers 4-Chloronitrobenzene upstream raw components, gear, downstream client survey, advertising channels, business development trend and proposals, which more specifically incorporate worthwhile details on 4-Chloronitrobenzene key applications and consumption, important regions and consumption, crucial global distributors , key raw components suppliers and speak to data, significant manufacturing gear suppliers and get in touch with details, key suppliers and contact Info, essential buyers and contact details, and supply chain relationship report also presents 4-Chloronitrobenzene item specification, manufacturing approach, and item cost structure and so on.
Commercial, industrial, and infrastructural projects are collectively accounted for higher demand for polymer concrete in 2017 and are expected to drive the international polymer concrete market place more than the forecast period. Other chemical substances which trigger allergies are preservatives like formaldehyde present in nail care merchandise, phenylenediamine identified in hair dyes, thimerosal and so on. Collectively, these industries make thousands of chemical merchandise and byproducts which range from petrochemicals to cosmetics and also plastic to toiletries. Their chemical properties are similar to those of basic molecules. Molecular ions were the only prominent ions developed in the FD mode of evaluation for the series of representative polymer chemical substances discussed in this paper. In the final decade, the meals sector has been thriving as preservatives enable the industries to maintain their goods on the shelf for longer and makes it possible for them to import food from various parts of the planet in the form of canned foods and ready-to-consume frozen foods. The Company’s line of company contains the manufacturing of synthetic resins, plastics materials, and nonvulcanizable elastomers. The companies say their new reformulated goods are entirely secure – and other groups such as the Environmental Functioning Group, question this assumption. As a true team of teams the Polymer Options Group organizations strive to provide client-centric options that enhance our customers’ goods, processes and performance. The Worldwide Nylon six Filament Yarn Marketplace size is anticipated to reach USD 33.58 billion by 2025, according to a new report by Grand View Study, Inc., progressing at a CAGR of 7.7% in the course of the forecast period. In summary, field desorption mass spectroscopy can in a lot of cases provide molecular weight and structural information for polymer chemicals heretofore not obtainable by any analytical technique. It performs by leaching chemical compounds that kill the fouling just before it has time to adhere to the hull. Even even though plastic recycling appears to fall far brief of its guarantee, recycled polyester, also named rPET, is now accepted as a sustainable” solution in the textile market, because it is a message that can be easily understood by consumers – and polyester is considerably less expensive than natural fibers. Epoxy held a leading 30% share in the international polymer concrete market in 2017 and is most likely to remain the top contributor over the forecast period, followed by polyester. The worldwide SAP industry can be segmented into four primarily based of application: Child diapers, adult incontinence products, feminine hygiene merchandise, and other individuals. In the latter case, rising the polymer chain length 10-fold would boost the viscosity over 1000 occasions. The PET polymer producer landscape is fragmented, with hundreds of producers globally, but some industry participants span the complete polyester value chain from the production of upstream monomers (ethylene oxide, ethylene glycol, purified terephthalic acid, or dimethyl terephthalate) all the way to the production of polyester fibers and strong-state resins. These polymers are consumed in the production of electrical insulations, coal boilers, packaging, and gaskets. 59 The mobility of the chain can additional modify if the molecules of plasticizer give rise to hydrogen bonding formation. In conclusion, it is a deep research report on global four-Nitrostyrene business. These industries require sturdy and reputable hoses and tubing to transfer highly caustic and corrosive chemical substances. Escalating use of PMMA and PVC, which makes use of MMA as a raw material, in different end-use industries is propelling marketplace development. Synthetic paper is recyclable and wastes linked to the production are collected by a recycling company and processed as raw components for other plastics. Most commonly, the constantly linked backbone of a polymer used for the preparation of plastics consists primarily of carbon atoms. Polymers containing amide or carbonyl groups can type hydrogen bonds in between adjacent chains the partially positively charged hydrogen atoms in N-H groups of a single chain are strongly attracted to the partially negatively charged oxygen atoms in C= groups on an additional. Our inventory of investigation reports caters to different industry verticals which includes Healthcare, Data and Communication Technology (ICT), Technologies and Media, Chemicals, Supplies, Power, Heavy Industry, and so forth. Key market place players contain Saudi Arabian Amiantit Organization, Enduro Composites, Inc., Ma’s Group Inc., FIMA Group Ltd., Sumitomo Seika Chemical compounds Co., Ltd, Nippon Shokubai Co., Ltd., LG Chemical compounds Ltd., Evonik Industries, BASF Corporation, Dow Chemical compounds and Chemxtex Speciality Restricted.
two) Telomerisation: chemical equivalent of making a daisy chain: produces mini polymers by joining single units with each other in chains. Many a time, they are also burned, mixed with soda ash, and exposed to a myriad of chemicals to refine the sugar. Polymers can be created into clear, waterproof films. Witton has worked hard to establish a reputation for delivering a quick, flexible and effective service taking goods to the industry rapidly. Our complete polymer chemical resistance plan involves testing for a wide range of chemical compounds discovered in operating environments, from hydrocarbons to aqueous systems. There are two theroies for why the properties of concrete are impoved ith the addition of polymers. The global textile sector has been undergoing rapid changes owing to rising focus of industry participants on introducing sustainable and eco-friendly fabrics. Numerous polymer structures can be produced based on the monomers and reaction conditions: A polymer may consist of linear macromolecules containing each only 1 unbranched chain. For international and China market place analysis, the report analyzes four-Chloronitrobenzene markets in China and other nations or regions (such as US, Europe, Japan, and so forth) by presenting analysis on worldwide products of diverse sorts and applications, developments and trends of marketplace, technologies, competitive landscape, and top suppliers’ and countries’ 2009-2014 capacity, production, expense, price tag, profit, production worth, and gross margin. We as a result really feel confident that FD-MS will become increasingly important in the characterization of polymer chemicals in the future. Predictions are that the demand for chemical goods will develop by around 9% per annum over the subsequent 5 years. On the GreenGuard internet site, for instance, it lists 1943 person goods, but all 1943 goods are manufactured by only 20 large, well-identified companies. In polymers, crystallization and melting do not recommend solid-liquid phase transitions, as in the case of water or other molecular fluids. The fluoropolymer makers are enhancing their processes and lowering their waste in order to reduce the quantity of PFOA supplies utilised. Solvay is a world leader in higher-overall performance Specialty Polymers, we give you with the broadest choice of advanced supplies Our offer you is distinctive. International Sourcing has made it simple and handy for numerous industries to operate with and discover raw components from other countries. Applications for recycled plastics are developing every day. Our firms & entrepreneurs work difficult to develop products and solutions that outperform those of our competitors and enable our customers’ accomplishment. For overview evaluation, the report introduces 4-Chloronitrobenzene standard information including definition, classification, application, industry chain structure, market overview, policy evaluation, and news analysis, and so forth. Plastic and rubber, together with adhesives, resin and fibres, from a group material called polymers. Proper from preservatives to taste enhancers, a variety of sorts of chemicals assist to enhance the shelf-life of products, although enhancing the taste considerably. It looks like the plastic bottle is right here to keep, regardless of publicity about bisphenol A and other chemical substances that may leach into liquids inside the bottle. Our deliverable is certainty – high good quality information, test reports and certificates that you can definitely rely on when producing choices about your supplies and compliance. In condensation polymerization, polymerization of 1 or much more monomers is accompanied by the elimination of small molecules (such as water or ammonia) (Table 2). For example, in producing polyamide 6,six, two monomers are utilized. Engro Polymer & Chemical compounds Restricted (EPCL) is the only fully integrated Chlor-Vinyl chemical complicated in Pakistan. Processing converts plastics into useful articles. This would be really labor intensive and would demand a lot of monitoring (all of which adds to the cost of production – and never forget, recycled polyester now is fashion’s darling because it really is so low cost!). The Global Polymer Gel Marketplace is expected to attain USD 7.93 million by 2025, according to a new report by Grand View Investigation, Inc. The fluoropolymer segment accounted the largest marketplace share in 2016 on account of its widespread use in the manufacturing of plastics, coatings, optical, medical, & electronic devices.
Polymers are studied in the fields of polymer science (which consists of polymer chemistry and polymer physics ), biophysics and supplies science and engineering Historically, items arising from the linkage of repeating units by covalent chemical bonds have been the major focus of polymer science An emerging important location now focuses on supramolecular polymers formed by non-covalent hyperlinks. Bronze common – items have a minimum of 30 percent recycled content material. Our partners & principals are worldwide marketplace leaders in their fields, with their assistance combined with our industry intel & years of experience we have developed the perfect answer to serve our specialist sector sectors in the UK & Ireland. Polymers are materials with a seemingly limitless variety of traits and colors. The macroscopic physical properties of a polymer are related to the interactions between the polymer chains. Silicone is typically a considerably thinner item than several of the other polymers on the marketplace. When a cleaner begins working on fabric-related processes, there is a limited set of alternatives obtainable when it comes to items. Phthalates are EDC’s (Endocrine Disrupting Chemical compounds.) They are chemical substances discovered in recycle codes #1 by means of #6 plastics. Thermax, amongst the major chemical organizations in India , provides water treatment plans that are primarily based on a thorough assessment of the procedure, water chemistry, cooling needs, and metallurgy of your industrial cooling method. Whilst these days, we see diverse components being utilised, some argue that there is less influence on the environment, but they are nonetheless chemicals that kill. Plastic materials consist of a handful of dyes, fillers, and additives, which are not simply recyclable. From the outcomes presented here, it is clear that FD-MS is a really successful analytical method for figuring out molecular weights of polymer chemical compounds. Both of these reactions lead to side chains so that the molecules of the polymer cannot pack with each other in a typical way. The worldwide polymer concrete industry is segmented into five regions namely Asia Pacific, North America, Europe, Latin America, and the Middle East and Africa. The GRS offers a track and trace certification technique that ensures that the claims you make about a product can be officially backed up. It consists of a three-tiered technique with the Gold normal requiring products to include among 95 percent to 100 percent recycled material the Silver common requires goods to be created of between 70 % to 95 percent recycled item and the Bronze common calls for products to have a minimum of 30 % recycled content. Despite the fact that forbidden in the EU, several companies have production web sites or suppliers outside Europe, where the use of NPEO is not forbidden. For technical data and manufacturing plants evaluation, the report analyzes four B Acid leading suppliers on capacity, industrial production date, manufacturing plants distribution, R&D status, technology sources, and raw materials sources. Grocery sacks and plastic bags are some of the other plastic items that can be recycled. And often a item is advertised as getting an organic fabric” when what they mean is the fabric began out with organic fibers – but the processing, like the organic applesauce mentioned above, outcomes in fabric that consists of a high proportion, by weight, of synthetic chemical substances (such as lead or mercury, formaldehyde, chlorine, or phthalates). For instance, while the polymer is used for wiring, producing furniture, clothes, property décor, prosthesis, and electronics, plastic is utilised for PVC piping, water tank creation, and creating storage containers. The polymer gel market is witnessing considerable demand from industries such as individual care and agriculture. This estimated information is cross-checked with business professionals from numerous major businesses in the market place. Chemical compounds and Polymer Recruitment Options Ltd is a trading division of PREA Ltd established over 25 years ago. Worldwide 4 B Acid Market 2015 Deep Market place Study Report is a skilled and deep analysis report in this field. Ultimately the unit summarises the variety of processing methods that can be employed to convert polymers into a vast variety of distinct goods. Thermosetting plastics, such as epoxies, phenolics, and silicones, have cross-linked chains. Element’s Engaged Professionals have considerable experience in reviewing polymer chemical resistance for oilfield applications.
At the doctoral level, the varied specialization alternatives contain Heat Transfer, Power management, Biochemical Engineering, Separation Processes, Pulp and Paper, Fluid Mechanics, Polymer science, and Reaction Engineering. Cattle concentrate these chemical substances by bioaccummulation because EDC’s from plastics are ubiquitous in water and most animal meals sources. In addition, the common includes environmental processing criteria and strick raw material specification (water treatment and chemical use is primarily based on GOTS and Oeko-Tex one hundred) and social duty is incorporated – which guarantees workers wellness and safety and upholds workers rights in accordance with International Labor Organisation (ILO) criteria. The International Antimony marketplace can be divided on the basis of Applications into the following segments: Fire Retarding Agent, Lead Batteries, Alloy-strengthening Agent, Catalyst, Ceramics, and Others. Polymers can be used for several devices combining exclusive optical, electrical, and mechanical properties. Beneath, the covering of the cable is a block co-polymer of the two alkenes, providing a very challenging material with rubber-like properties. Oeko Tex one hundred is item specific – they do not appear at processing (i.e., water treatment, workers rights, emissions, sludge), it only implies that the finished product (fabric, yarn, clothes, and so forth.) has limit values for chemicals which are below the threshold limits on the Oeko Tex list, with several particularly prohibited. Chemicals and cleaning items are critical in the aircraft washing company and you require to comprehend which ones can and cannot be utilized on which surfaces, for corrosion protection and new high-tech lightweight paints. Standard formulation understanding of important technologies in house care products like surfactant, builder, enzymes and polymers is essential. This involves pretreatment of the cooling tower makeup, maintaining the mineral solids soluble, employing crystal modifiers, and the application of different cooling water polymers. Raw supplies and foodstuffs industries. BULWARK Chemicals For Building Supplies Supplier In Gujarat, Construction Supplies Supplier In India, Construction Supplies Supplier In Ahmedabad , Building Components In Ahmedabad, Building Materials In Gujarat, Construction Supplies In India. All round the chemical properties of a polymer are crucial elements for designing new polymeric material goods. To achieve this bold objective, we’re innovating efficient ways to close energy and material cycles, pushing the boundaries of what is attainable with polymers. I would strongly advise consumers to buy beverages and non-strong food items packaged in glass rather than plastic if provided the selection. Exceed XP performance PE polymers provide step-out mechanical overall performance and excellent processability for a wide variety of applications. Fabrics finished with PFCs have nonstick properties this family of chemical substances is employed in almost all the stain repellant finishes on the industry these days. This tends to enhance the free of charge energy of mixing for polymer solutions and thereby making solvation significantly less favorable, and thereby making the availability of concentrated options of polymers far rarer than those of modest molecules. To handle the Plant Operations, Production, QA, Projects, Streamlining Processes and Enhancing Productivity. Losses from the polymer-chemical operations last year offset earnings in fine and pharmaceutical chemicals for a total division loss of $9 million, an Upjohn spokesman mentioned. It adds new chapters on controlled polymerization and chain conformations whilst expanding and updating material on topics such as catalysis and synthesis, viscoelasticity, rubber elasticity, glass transition, crystallization, resolution properties, thermodynamics, and light scattering. The polymer is what protects the steel from external aspects causing corrosions like chemicals, water, soil and weather. LOTTE Chemical stabilized the provide of products by way of vertical integration of raw components and merchandise, and strives to develop new products that meet the users’ needs. Plastic from soft drink and water bottles can be spun into fiber for the production of carpet or produced into new meals bottles. Conductive nature, these chemical substances are utilized in a wide range of applications, mainly in the electronics market. This unit supplies an overview of the main varieties of polymers characterised by how they are created, how their structures govern their basic properties and how these properties can be refined by their formulation making use of a variety of additives.
Our inventory of analysis reports caters to numerous market verticals like Healthcare and Chemical substances, Components. The microstructure determines the possibility for the polymer to kind phases with distinct arrangements, for example although crystallization , the glass transition or microphase separation 25 These attributes play a key part in figuring out the physical and chemical properties of a polymer, for instance its mechanical properties and interaction with other chemicals and solvents. We are your a single quit shop – supporting the demands of our specialist market sectors, we supply products such as additives, minerals, colourants, polymers & textile processing chemicals. By combining proprietary catalyst and procedure technology, we have introduced a new line of merchandise that provide Extreme Efficiency for a selection of applications. LOTTE Chemical has a vertically integrated, effective production structure for higher worth-added products utilized in building, home appliance, and textile industries. Polymer roofing shingles are also fantastic to use because they cost significantly less income than all-natural materials. In the world of nanoscience, ordinary materials display distinctive properties at the nanoscale. Many condensation polymeriztion reactions, in which one particular or two monomers are the beginning materials, also need to have catalysts. Right here, we express our thanks for the help and assistance from Benzyl Bromide industry chain associated technical specialists and marketing engineers during study team’s survey and interviews. Performance polymers are excellent for a variety of applications. Just as quenching can make amorphous arrangements, processing can manage the degree of crystallinity for these polymers that are capable to crystallize. They assumed that this would be very labor intensive and would call for a lot of monitoring (all of which adds to the cost of production – and don’t forget, recycled polyester now is fashion’s darling simply because it really is so inexpensive!). When the creating blocks can be produced a lot more economically from renewable components than from fossil fuels, either old plastics uncover new raw supplies or new plastics are introduced. The Worldwide Polymer Gel Market segmented on the basis of Application, and Region. But developing block repeat units can often be produced from renewable supplies such as polylactic acid from corn or cellulosics from cotton linters. Rubber tree latex and cellulose have been used as raw material to make manufactured polymeric rubber and plastics. When a polymer is applied as a coating, the chemical properties will influence the adhesion of the coating and how it interacts with external components, such as superhydrophobic polymer coatings major to water resistance. If you are in search of chemical firms in India that offer oil field specialty chemicals, go to This is a business that focuses on treating crude oil and water in an efficient and cost-efficient manner. A walk through your property will reinforce this concept, as you take into account all the appliances, cords, electrical outlets and wiring that are produced or covered with polymeric materials. Sintering is the approach that is performed to fuse the constituent components of iron ore to make a single porous mass that can be employed in a blast furnace. Polymer Valley Chemical substances ships throughout North America and internationally. Based on their chemical structures, polymers could be either semi-crystalline or amorphous. Unfavorable production has been simplified with the introduction of water based negative technologies, photographic chemicals for making negatives are now a issue of the previous. Cradle to Cradle () : mainly it certifies that the product utilizes environmentally safe and wholesome materials – even so the list of what is regarded as secure is proprietary so we have to take their word for it. In other words: they are not transparent. For market chain analysis, the report covers Benzyl Bromide upstream raw materials, gear, downstream client survey, advertising channels, industry improvement trend and proposals, which more especially consist of useful information on Benzyl Bromide essential applications and consumption, key regions and consumption, key international distributors , major raw materials suppliers and get in touch with data, main manufacturing equipment suppliers and speak to data, main suppliers and speak to Info, key shoppers and contact information, and supply chain partnership analysis.
BULWARK flow G is a concentrated, prepared to use aqueous solution of organic polymers with higher plasticizing effect. This would be extremely labor intensive and would require a lot of monitoring, all of which adds to the expense of production – and do not overlook, recycled polyester now is fashion’s darling since it’s so low cost, so these manufacturer’s wouldn’t be anticipated to boost charges. It protects ferrous and non-ferrous components from corrosive chemical substances. Some of the important players in the international polymer concrete market are Sika AG (Switzerland), MAPEI Corporation (Italy), Fosroc Inc. Dumps specified quantity of chemical substances, such as polymer, salt, and potassium permanganate into chemical feeders. Table six Strategies of processing plastics. This is to inform you that Mr. Omar Yaqoob Sheikh has tendered his resignation as a Director on the Board of Engro Polymer & Chemical compounds, w.e.f October 8,2016. Some of the key players in the global polymer concrete market are Sika AG (Switzerland), MAPEI Corporation (Italy), Fosroc. Over the final 70 years, synthetic polymers have been invented, usually mimicking nature and they are now manufactured in millions of tonnes a year and are one particular of the most vital supplies we use. When a polymer is dispersed or dissolved in a liquid, such as in commercial products like paints and glues, the chemical properties and molecular interactions influence how the answer flows and can even lead to self-assembly of the polymer into complicated structures. Perfluorochemicals (PFC’s) are the only chemicals capable of repelling water, oil and other liquids that trigger stains. These chains are THERMOPLASTIC polymers and are also known as LINEAR polymers. Recycled plastics can be blended with virgin plastic (plastic that has not been processed prior to) with no sacrificing properties in many applications. Metallic stearates and amide waxes are typically used in the extrusion and injection of plastic polymers to control the viscosity for the duration of the procedure and give the needed mechanical properties. Cradle to Cradle and GreenGuard can price really a bit, so when you look on the internet internet sites to uncover which items have these certifications, you see mainly big, well established companies which can afford to absorb the certification fees. Synthetic polymers might consist of both crystalline and amorphous regions the degree of crystallinity might be expressed in terms of a weight fraction or volume fraction of crystalline material. Rigid polyurethane foam is a single of the most successful sensible thermal insulation components, utilized in applications ranging from buildings to the modest domestic refrigerator. I have lengthy been concerned about the rampant acceptance of recycled polyester as a green option when no mention has been made of processing chemical substances, water remedy or workers rights, so we welcome this new GRS certification, which permits us to be much more aware of what we’re actually getting when we attempt to do good”. Akzo Nobel, based in the Netherlands, serves customers throughout the planet with healthcare merchandise, coatings and chemical substances. That difference is what guarantees that this material is robust enough to withstand abrasion and effect greater than decrease level poly merchandise. UAC Advance Polymer & Chemical substances Co., Ltd. Phthalates are capable to leach out of these items as they are not bonded to the plastic. At Polymer Options Group, we strive to make our customers’ products the best they can be. Within the walls of every PSG business we nurture a commitment to client-centric innovation that demands deep information of the markets we serve. For international and China industry analysis, the report analyzes four-Nitrostyrene markets in China and other nations or regions (such as US, Europe, Japan, and so on) by presenting research on worldwide goods of diverse types and applications, developments and trends of industry, technologies, competitive landscape, and major suppliers’ and countries’ 2009-2014 capacity, production, expense, value, profit, production value, and gross margin. If bubbling is noticed, instantly wipe it as this the usual chemical reaction if the material is a plastic. Linking countless strips of building paper together to make paper garlands or hooking together hundreds of paper clips to kind chains, or stringing beads assists visualize polymers. Co-polymers are extremely valuable as they have the properties of the constituent polymers and as a result can be made for specific purposes.