Abstract
Through the pretreatment of 4, 4′-oxydianiline(ODA) with polyhydrogenmethylsiloxane (PHMS) using sodium hydroxide as a catalyst and subsequent reaction of this pretreated PHMS-ODA with 3, 3′, 4, 4′-benzophenonetetracarboxylic dianhydride(BTDA), polysiloxane can be attached to the polyamic acid by the silyl ester bond. By the thermal treatment of this polysioloxane—polyamic acid compound, well dispersed polymethylsilsesquinoxane(PMSQ) into polyimide can be obtained.
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