For one thing, they are complex and giant molecules and are different from low molecular weight compounds like, say, common salt. To contrast the difference, the molecular weight of common salt is only 58.5, wh
Whehnthesc rings are interlinked, the chain formed can be considered as reprcscatingapolymer from molecules ó the sdimic compoutiad Alternatively, individyalrings cuidbe ofdifferent sizes and materials, and interlinked to represent a polymer ffom molecules of dif-ferent compouds.artbgeuurrle ...
RichGeoffroy Materials Apr 30, 2004 64 Polymers (“poly” = many; “mer” = unit) are long-chain molecules that consist of “many units”, i.e., repeating sections of monomers --- like links in a chain --- e.g., polyethylene would consist of many ethylene (-CH2-CH2-) units. ...
polymer sensing materialsdopantsvolatile organic compounds (VOCs)The article from this special issue was previously published in Polymers for Advanced Technologies, Volume 28, Issue 3, 2017. For completeness we are including the title page of the article below. The full text of the article can be...
Raw materials are the unprocessed, or minimally processed, inputs used in the production of goods, such as the steel, rubber and plastic used to manufacture cars. What’s more, they are a hot commodity: A forecast from the Institute for Supply Chain Management states that raw material prices...
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For example, carbon polymers are being developed and enhanced for the automotive industry. "Carbon-fiber-reinforced polymer (CFRP) composites — also called carbon-fiber laminates — are the next-generation materials for making cars lighter, more fuel efficient and safer," according to a 2016 Live...
polymerburn readily in presence of oxygen, and generally thermoplastics are worse than thermoset materials. The flammability of polymers can limit their applications. Fire safety concerns regarding flammability of polymers has put specific and strict requirements for certain types of application, for ...
Dynisco™ analyzers, including melt flow indexers, and rheometers, are recognized for testing the physical, mechanical, and thermal properties of polymers. Dynisco’s material analysis solutions range from the analysis of a polymer in the laboratory, to online quality control in production, to pro...
1.1 MicrostructureThe microstructure of a polymer (sometimes called‘configuration’) relates to thephysical arrangement of monomer residues along the backbone of the polymer chain.These are the elements of polymer structure that require the breaking of the covalentbond to change. A structure has a ...