ESTER-FUNCTIONAL POLYSILOXANES AND COPOLYMERS MADE THEREFROM

摘要

There is described a polysiloxane having the structure:;;wherein R1, R2, and R3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen, R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50. The polysiloxane is used to make various copolymers and polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.

主权项

1. A method of preparing the polyorganosiloxane having the structure of Formula I:wherein R1, R2, and R3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical; R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen; R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; R6 is independently a hydroxyl group; x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50 comprising:
reacting a hydride terminated siloxane represented by Formula II:wherein R1, R2 and R3, are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical; x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50;
with a phenol protected compound having the general formula: wherein R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen; R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, at a temperature effective to produce a phenol-protected siloxane; deprotecting the phenol-protected siloxane compound in a mixture of a polar solvent and a mineral acid to form a phenol-deprotected siloxane; and purifying the phenol-deprotected siloxane.