Rubber, methyl-phenyl-vinyl silicone

Silicone rubbers are formed by an inorganic main chain of oxygen-silicon covalent bonds, with side substituents consisting of methyls, phenyls, vinyls, etc. The most commonly used is polydimethylsiloxane (PDMS) whose structure is given below ... [Pg.126]

PVMQ Silicone rubbers having methyl, phenyl and vinyl substituent groups on the polymer chain. [Pg.834]

Silicone rubbers with methyl, phenyl, and vinyl groups, also... [Pg.2163]

Silicone rubber shows very good resistance to boiling water, but degradation is observed once silicone rubber is exposed to steam. Dimethyl siloxane rubbers are even depolymerized by water vapor. Grades with methyl phenyl and vinyl siloxane units are more resistant [32]. [Pg.809]

PVMQ Silicon-rubber containing methyl, vinyl and phenyl groups in the polymer chain... [Pg.75]

In addition to the methyl groups, some different grades of silicone rubber will also possess vinyl substitutions for better cures and phenyl groups for better low-temperature properties (They help inhibit crystallization at very low temperatures). In addition, fluorine groups can also be substituted for better oil resistance however, this adds to the production costs. [Pg.111]

As far as nomenclature, there is a standard system for naming the different grades of silicone rubber based on methyl, vinyl, phenyl, and fluorine content in accordance with ASTM D1418. Beyond that, there is no official, generally recognized system of classification for silicone rubber. [Pg.112]

PVMQ Silicone rubber with vinyl, methyl, and phenyl substituents PVOH Polyvinyl alcohol (PVAl)... [Pg.540]

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