Method for making silicone-organic block copolymers

Details Method for making silicone-organic block copolymers Method for making silicone-organic block copolymers

C - Chemistry, Metallurgy

08

F

400/2005

C08F 283/12 (2006.01)

Patent

CA 1232386

A METHOD FOR MAKING SILICONE- ORGANIC BLOCK POLYMERS Abstract of the Disclosure A method is provided for making silicone-organic block polymers, such as polydimethylsiloxane-polystyrene block polymers resulting from the thermal generation of free-radicals in the presence of free-radical polymerizable organic monomer. A silicone prepolymer is used having chem- ically combined pinacolate groups the in backbone or ter- minal positions which are capable of generating free-rad- icals upon thermolysis and which retain chemically combined remnants of such pinacolate diradicals which serve as con- necting sites for free-radical polymerized organic blocks.

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