Siloxane containing network polymer

Details Siloxane containing network polymer Siloxane containing network polymer

C - Chemistry, Metallurgy

08

C

402/13

C08C 19/44 (2006.01) C08F 8/42 (2006.01)

Patent

CA 1272837

Abstract of the Disclosure SILOXANE CONTAINING NETWORK POLYMER Metals from groups I and II are commonly used to catalyze the polymerization of monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to catalyze the polymerization and are sometimes referred to as living polymers. Such polymers can be crosslinked to produce a polymeric network by utilizing the process of the present invention. More specifically, the present invention discloses a process for endlinking a living polymer comprising reacting the living polymer which is metal terminated with a halogenated silicon containing compound to produce a polymer which is terminated with halogenatad silicon moieties; followed by reacting that polymer with a tertiary alcohol to produce a polymer which is terminated with hydroxy silyl moieties. The polymer which is terminated with hydroxy silyl moieties can then be endlinked into a network polymer that contains siloxane linkages by simply heating it.

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