利用一苯基硅三醇单体（CAB）为改性剂,与环氧树脂（EP）接枝共聚,制备EP-CAB共聚物。采用红外光谱（FT-IR）对其结构表征,通过透光率、折射率、热重分析（TGA）、吸水率和接触角等手段,对其光学性能、耐热性和耐湿性分析。结果表明,共聚物分子链上有Si-O-C键生成;当CAB质量分数为10%时,EP-CAB共聚物的折射率为1.5337,在300 nm～800 nm紫外-可见范围内,其透光率均高于80%,优于EP;CAB的加入使共聚物的耐热性明显提高;当CAB质量分数为10%时,其接触角和吸水率分别为85.1°和0.2125%。
EP-CAB copolymers were prepared by graft polymerization using epoxy resin（EP） and phenylsilanol monomer（CAB）.The structures of EP-CAB copolymers were analyzed by Fourier transform infrared spectrum（FT-IR）.The optical properties,heat resistance and waterlogging tolerance of copolymers were analyzed by the index,transmittance,TGA,water absorption and contact angle.The results indicate that Si-O-C bond is formed in molecular chains of EP-CAB copolymers.The index reaches 1.5337 after modification with CAB of 10%.In ultraviolet-visible range 300 nm to 800 nm,the transmittance of copolymers is above 80%.With adding CAB,the heat resistance of copolymers significantly improves.When CAB mass fraction is 10%,the water absorption and contact angle of copolymers is 0.2125% and 85.1°,respectively.
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