Polysiloxane co- or terpolymers and polymers made therefrom

摘要

Thermoplastic resin polymer compositions having a block of random polysiloxane co- or terpolymer structure, such as substituted phenyl-terminated polysiloxane co- or terpolymers having the general structure:;
provide improved flame resistance, optical clarity, and better low-temperature impact strength compared to conventional blends, additives, and copolymers. The substituted phenyl terminated polysiloxanes may be used to make various polysiloxane-thermoplastic resin polymer and polymer blends, as well as articles including such polysiloxane-thermoplastic resin polymer and blends.

主权项

1. A substituted phenyl-terminated polysiloxane terpolymer comprising the structure: wherein R, R1, R2 and R3 are independently a linear or branched aliphatic group containing from 1 to 20 carbon atoms, a substituted or unsubstituted aryl group containing 6 to 16 carbon atoms, an alicyclic group containing 3 to 16 carbon atoms, a heteronuclear aromatic group containing 3 to 16 carbon atoms, a hydrocarbyl group having from 3 to 16 carbon atoms and containing at least one heteroatom of oxygen, nitrogen or sulfur and/or containing at least one ester, nitrile or halo group, wherein R1, R2, and R3 are not the same group; R4 is independently a divalent linear or branched alkylene group having from 1 to 10 carbon atoms, an aralkylene group having from 6 to 12 carbon atoms, an unsubstituted or substituted arylene group having from 6 to 18 carbon atoms, hydrocarbylene group having from 2 to 10 carbon atoms and containing at least one heteroatom of oxygen or a covalent single bond; R5 is independently a hydrogen, a halogen, an aliphatic group containing from 1 to 12 carbon atoms, an aromatic group containing from 6 to 12 carbon atoms, an alkoxy group containing form 1 to 12 carbon atoms or an aryloxy group containing from 6 to 12 carbon atoms; R6 is independently a hydroxyl group, an amine group, a carboxylic acid chloride group or a sulfonyl halide group; x is an integer from 1 to 300; y is an integer from 1 to 100; z is an integer from 1 to 50.