molecular-chain scission

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• Polymer — Appearance of real linear polymer chains as recorded using an atomic force microscope on surface under liquid medium. Chain contour length for this polymer is 204 nm; thickness is 0.4 nm.[1] A polymer is a large molecule (macromolecule …   Wikipedia

• Thermal degradation of polymers — is molecular deterioration as a result of overheating. At high temperatures the components of the long chain backbone of the polymer can begin to separate (molecular scission) and react with one another to change the properties of the polymer.… …   Wikipedia

• Polymer degradation — is a change in the properties tensile strength, colour, shape, etc of a polymer or polymer based product under the influence of one or more environmental factors such as heat, light or chemicals. These changes are usually undesirable, such as… …   Wikipedia

• Chemically Assisted Degradation of Polymers — is a type of polymer degradation that involves a change of the polymer properties due to a chemical reaction with the polymer’s surroundings. There are many different types of possible chemical reactions causing degradation however most of these… …   Wikipedia

• Chemically assisted degradation of polymers — is a type of polymer degradation that involves a change of the polymer properties due to a chemical reaction with the polymer’s surroundings. There are many different types of possible chemical reactions causing degradation however most of these… …   Wikipedia

• plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …   Universalium

• Cytochrome P450 — Oxidase (CYP2C9) Identifiers Symbol p450 Pfam …   Wikipedia

• Oxo Biodegradable — (OXO) plastic is polyolefin plastic to which has been added amounts of metal salts. These catalyze the natural degradation process to speed it up so that the OXO plastic will degrade resulting in microfragments of plastic and metals which will… …   Wikipedia

• Poly(methyl methacrylate) — This article is about the transparent plastic sometimes called acrylic glass. For the glass/plastic laminate often called safety glass , see laminated glass. Poly(methyl methacrylate) …   Wikipedia

• Photo-oxidation of polymers — Photo oxidation is the oxidation of a polymer surface in the presence of oxygen or ozone that is facilitated radiant energy such as UV or artificial light. This proces is often the the most significant component of weather degradation of polymers …   Wikipedia

• Polysulfone — repeating unit. Polysulfone describes a family of thermoplastic polymers. These polymers are known for their toughness and stability at high temperatures. They contain the subunit aryl SO2 aryl, the defining feature of which is the sulfone group …   Wikipedia