Synthesis method of high molecular weight polysiloxane containing nitrile group and vinyl at the same time and preparation method of addition type heat vulcanized nitrile silicone rubber
A polysiloxane, high molecular weight technology, applied in the field of organosilicon polymer synthesis, can solve the problems of less nitrile silicone rubber, insufficient heat resistance, and difficult vulcanization of mixed rubber.
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[0011] Technical scheme of the present invention is as follows:
[0012] A kind of synthetic method of the high molecular weight polysiloxane containing nitrile group and vinyl simultaneously, comprises steps as follows:
[0013] Mix the high molecular weight polysiloxane containing both amino group and vinyl group with the unsaturated compound containing nitrile group under the condition of using solvent or without solvent, and pass the amino group under the condition of using catalyst or without using any catalyst. The reaction with the double bond in the unsaturated compound introduces the nitrile group into the high molecular weight polysiloxane molecule containing vinyl, and prepares the high molecular weight polysiloxane containing both nitrile group and vinyl group.
[0014] The synthetic equation of high molecular weight nitrile group polysiloxane of the present invention is:
[0015]
[0016] Among them, R 1 -R 7 are various organic groups, and n and m are integ...
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