what is a polyether
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- Definition of POLYETHER. : any of a group of polymers in which the repeating unit contains a carbon-oxygen bond derived especially from an aldehyde or an epoxide and which are used especially in the manufacture of plastic foams.ADVERTISEMENT. poly- + ether.First Known Use: 1922. any of a group of polymers in which the repeating unit contains a carbon-oxygen bond derived especially from an aldehyde or an epoxide and which are used especially in the manufacture of plastic foams. ADVERTISEMENT.
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Polyester Polyester is a category of polymers that contain the ester functional group in their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET).olyester fabrics are highly stain-resistant— in fact, the only class of dyes which can be used to alter the color of polyester fabric are what are known is disperse dyes.
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Polyurethane Polyurethane. Polyurethanes are linear polymers that have a molecular backbone containing carbamate groups (-NHCO2). These groups, called urethane, are produced through a chemical reaction between a diisocyanate and a polyol. First developed in late 1930s, polyurethanes are some of the most versatile polymers.They are used in building insulation, surface coatings, adhesives, solid plastics, and athletic apparel.n order to produce polyurethane, a step—also known as condensation—reaction is performed. In this type of chemical reaction, the monomers that are present contain reacting end groups. Specifically, a diisocyanate (OCN-R-NCO) is reacted with a diol (HO-R-OH).
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Barrier Polymers ] at room temperature. Poly(ethylene terephthalate) (PET), with an oxygen permeability of, is not considered a barrier polymer by the old definition; however, it is an adequate barrier polymer for holding carbon dioxide in a 2-L bottle for carbonated soft drinks.
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- What is Expanded Polystyrene. Foamex expanded polystyrene (polymerised styrene) is a rigid cellular plastic foam material derived from petroleum and natural gas byproducts. Styrene is produced from benzene and ethylene, and is polymerised in the presence of catalysts, usually organic peroxides.
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- Polyethylene (PE) is the most commonly used plastic polymer in the world with annual consumption rates exceeding 50 billion pounds per year. Over 70 percent of Porex products use porous polyethylene. With a linear molecular structure of repeating –CH2-CH2-units, PE is a semi-crystalline polymer that elongates before breaking, enhancing its toughness. In general, porous PE is considered a strong, lightweight thermoplastic with strong chemical resistance. Products made from standard polyethylene grades typically have pore size diameters ranging from 7 to 150 micrometers, but these nominal values can be increased to 300 micrometers with special blends.
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- polyethylene terephthalate. (organic chemistry). A thermoplastic polyester resin made from ethylene glycol and terephthalic acid; melts at 265°C; used to make films or fibers.Abbreviated PET.organic chemistry). A thermoplastic polyester resin made from ethylene glycol and terephthalic acid; melts at 265°C; used to make films or fibers.
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- PET is polyethylene terephthalate (technical definition of PET) It's a plastic resin and the most common type of polyester. Two monomers—modified ethylene glycol and purified terephthalic acid—are combined to form the polymer called polyethylene terephthalate. PET was discovered and patented in England in 1941.
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- Polystyrene is a type of polymer with thermoplastic properties produced from the petroleum-derived monomer, styrene.In solid form, it is a colorless and rigid plastic, but it may also be returned to a liquid state by heating, and used again for molding or extrusion.olystyrene is a type of polymer with thermoplastic properties produced from the petroleum-derived monomer, styrene.
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What is Polyester? Polyester is a manufactured product, usually a textile, that is made from synthesized polymers. It tends to be very resilient, quick drying, resistant to biological damage such as mold and mildew, easy to wash and able to hold forms well.his substance is made from polyethylene terephthalate (PET), the same material that is used to make plastic drink bottles. Many drink bottles are recycled by being reheated and turned into polyester fibers, which, in addition to being an efficient use, also helps keep polymers out of landfills.
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- Plastics and polymers Polymers What is a Polymer? A polymer is a molecule that consists of certain type of arrangement of atoms that is repeated over and over. The result is a very large molecule that can consist of 2000 or more of the base compound.olyethylene (PE) Polyethylene is a simple example of a polymer, and is one of the most common and widely used polymers. H H H H H H H H H H H H │ │ │ │ │ │ │ │ │ │ │ │ -C —- C —-C —- C—- C —- C—- C —- C—- C —- C—-C —- C - │ │ │ │ │ │ │ │ │ │ │ │ H H H H H H H H H H H H Polyethylene.
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- 1/4, 1/2, 3/4, 1, 1-1/2, and 2. Polyethylene foam is a strong and resilient closed‐cell foam, ideally suited as a shock‐absorbing material in packaging and padding. Polyethylene closed‐cell foam is available in sheets, cylinders, and tubes that are great for expansion joint filler (backer rod), insulation, buoyancy components, and packaging.
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Urethane Definition - What does Urethane mean? Urethane is a type of polymer containing organic chains united by carbamate links. It is formed by the reaction of polyol and isocyanate. Both of these are utilized to produce polyurethanes that contain at least two of several functional groups in every molecule. Urethane is mainly used as an ingredient in:
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- Polyethylene Poly Sheeting, a general-purpose poly film with a range of standard to heavy-duty thickness for use in construction projects, paint protection, agriclture applications, and equipment. Plastic Construction Film & Agriculture Flim Also known as Visqueen Film.
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- Polypropylene is the single largest consumed polymer resin in the world. It is one of the most versatile plastics made from polyolefin. It is produced by the polymerization of propylene.
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What is HDPE? HDPE is one of the most commonly used plastics in the world and is the most commonly utilized plastic in the US. It has the recycle symbol #2, and Unicode U+2674. HDPE is commonly used in milk jugs, water bottles, buckets, automobile parts, plastic bags and plastic appliance parts.HDPE is a lot stronger than the standard polyurethane, it retains its solidity in room temperature and is an effective barrier against moisture.It is also not susceptible to rotting, is resistant to insects and is usually not eaten away by chemicals.DPE is a lot stronger than the standard polyurethane, it retains its solidity in room temperature and is an effective barrier against moisture. It is also not susceptible to rotting, is resistant to insects and is usually not eaten away by chemicals.
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What is Polybutylene? Polybutylene is a form of plastic resin that was used extensively in the manufacture of water supply piping from 1978 until 1995. Due to the low cost of the material and ease of installation, polybutylene piping systems were viewed as the pipe of the future and were used as a substitute for traditional copper piping.
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Plastics and Polymers Polyethylene is made from just ethylene monomers - but it's also possible to create polymers from two or more different monomers. You can make hundreds of different polymers depending on which monomers and catalysts you use.
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Plastic Polystyrene is a rigid, brittle plastic that is now used to make plastic model kits, disposable eating utensils, and similar knicknacks. It would also be the basis for one of the most popular foamed plastics, under the name styrene foam or styrofoam.
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Polypropylene An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids. Polypropylene has a relatively slippery low energy surface that means that many common glues will not form adequate joints.
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Polyethylene The name polyethylene comes from the ingredient and not the resulting chemical compound, which contains no double bonds. The scientific name polyethene is systematically derived from the scientific name of the monomer. The alkene monomer converts to a long, sometimes very long, alkane in the polymerization process.
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- Polyurethane synthesis, wherein the urethane groups — NH-(C=O)-O-link the molecular units. Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links.on-isocyanate based polyurethanes (NIPUs) have recently been developed as a new class of polyurethane polymers to mitigate health and environmental concerns. Polyurethane products often are simply called “urethanes”, but should not be confused with ethyl carbamate, which is also called urethane.
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What is polyresin? Define poly: a polymerized plastic or something made of this; especially : a polyester fiber, fabric, or garment — poly in a sentence a polymerized plastic or something made of this; especially : a polyester fiber, fabric, or garment…
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Polystyrene Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic polymer made from the monomer styrene. Polystyrene can be solid or foamed. General purpose polystyrene is clear, hard, and rather brittle.It is an inexpensive resin per unit weight.olystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic polymer made from the monomer styrene. Polystyrene can be solid or foamed. General purpose polystyrene is clear, hard, and rather brittle.
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- What is Polyester. olyester is a term often defined as “long-chain polymers chemically composed of at least 85% by weight of an ester and a dihydric alcohol and a terephthalic acid”. In other words, it means the linking of several esters within the fibers. Reaction of alcohol with carboxylic acid results in the formation of esters.
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What is Polybutylene? polybutylene is a type of plastic resin that was used extensively in the manufacture of potable water piping from 1978 until 1995 shell and dupont were two of the primary manufacturers of the polybutylene also known as pb piping and fittingsolybutylene is a type of plastic resin that was used extensively in the manufacture of potable water piping from 1978 until 1995 shell and dupont were two of the primary manufacturers of the polybutylene also known as pb piping and fittings