Gourt > Business > Chemicals > Polymers (75)
Polymer is a term used to describe molecules consisting of structural units and a large number of repeating units connected by covalent chemical bonds. The term is derived from the Greek words: polys meaning many, and meros meaning parts *. The key feature that distinguishes polymers from other molecules is the repetition of many identical, similar, or complementary molecular subunits in these chains. These subunits, the monomers, are small molecules of low to moderate molecular weight, and are linked to each other during a chemical reaction called polymerization.
Instead of being identical, similar monomers can have varying chemical substituents. The differences between monomers can affect properties such as solubility, flexibility, and strength. In proteins, these differences give the polymer the ability to adopt a biologically-active conformation in preference to others. (See self-assembly.) Identical monomers with nonreactive side groups result in a polymer chain that will tend to adopt a random coil conformation, as described by an ideal chain mathematical model. Although most polymers are organic, with carbon-based monomers, there are also inorganic polymers; for example, the silicones, with a backbone of alternating silicon and oxygen atoms and polyphosphazenes.
Polymer nomenclature
Polymers are typically classified according to four main groups:
- thermoplastics (linear or branched chains)
- thermosets (crosslinked chains)
- elastomers
- Coordination polymers
Polymers :: Recycling
Polymers :: Materials
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Akzo Nobel Polymer Chemicals - Manufacturer of organic peroxides, metal alkyls, Ziegler-Natta and other polymerization catalysts.
Albemarle Corporation - Manufacturer of polymers and fine chemicals, including additives and intermediates used in agricultural and cleaning products, drilling compounds, pharmaceuticals such as ibuprofen-based drugs, photographic chemicals, plastics, and polymers. (NYSE: ALB)
Beijing Gama High Tech. Co., Ltd. - Chemical technology company engaged in developing radiochemical products and applications, particularly materials produced by radiation-induced polymerization.
Biesterfeld Interowa GmbH - Germany. Manufacturers of specialty polymers for engineering and high-performance applications.
EcoSynthetix - Sugar based macromers and polymers. Bio-based technology with polymeric molecules and chemical processing for laboratory networking industry.
G.M. Associates - Specializes in custom made polysaccharide polymers for gelling agents and crosslinking agents in various food, mining and other industrial applications.
International Mold Steel - Specializes in mold and die steels, and porous aluminum thermoforming mold materials.
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International Protein Colloids, Inc. - Manufactures polymer which can be used as a binder, coating, adhesive in seed coating, soil stabilization, concrete, asphalt and many other markets.
Meta Description: [ Agrotec is an extremely versatile polymer which can be used as a binder, coating, adhesive or fortifier in seed coating, soil stabilization, concrete, asphalt and many other markets. ]
Ming Dih Group Corporation - Manufacturer of expandable polystyrene (EPS) and benzoyl peroxide (BPO).
Meta Description: [ Manufacturer of expandable polystyrene( EPS ), included general purpose, fast cycle purpose and self-extinguishing purpose. ]
Panipol Oy - Finland. Manufacturers of inherently conductive polyaniline polymers. Also, polyaniline based coating systems and inks, and melt-processable grade chips for conductive applications. Extensive technical information.
Meta Description: [ Panipol inherently conductive polymers. , ]
PMC Group - Global corporation serving the chemicals and plastics industries. Products include flame-retardant concentrates and compounds and anti-static concentrates.
Polymer Chemistry Innovations, Inc. - Manufactures polymer products which include aquazol polyethyloxazoline, macromonomers and custom synthesis capabilities.
Saint-Gobain Performance Plastics - Manufacturer of polymer products including fluoropolymers, silicones, and high-temperature thermoplastics.
Meta Description: [ Saint-Gobain Performance Plastics is the world's largest processor of high performance polymer products, including fluoropolymers, silicones, and high-temperature thermoplastics. ]
Shokubai Co., Ltd - Manufactures specialty polymers and chemicals. Biodegradable polymers, thermoplastic polyesters, epoxy curing agents and synthetic lubricants. Japan.
Ticona - Multi-national manufacturers of advanced polymers for high performance plastic materials for a wide range of industrial and consumer products. Technical articles and information on PDF files. Part of the Celanese Corp.
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