【摘要】 以甲醇钾为催化剂，四(二甲基乙烯基硅氧基)硅烷（TVDMS）为封端剂，三(三甲基硅基)磷酸酯为中止剂，使用二甲基硅氧烷混合环体（DMC）、四乙烯基四甲基环四硅氧烷（V4）、八苯基环四硅氧烷（P8）为原料，通过高温阴离子开环聚合反应环境友好地成功合成了二苯基硅基改性的含乙烯基的聚二甲基硅氧烷，并利用FTIR、HNMR和GPC对其结构和分子量数据进行了表征，将其制备成离型涂层后，通过180°剥离力测试、疏水角测量、折光率测量等对其性能进行了表征。结果表明，固化样品硬度高，透明性好，折光率随苯基含量的提高而提高，涂层具有100～110°的水接触角，随着苯基含量的提高，剥离力和残余接着率都有所下降。更多还原

【Abstract】 Using potassium methoxide as a catalyst, tetrakis(vinyldimethylsiloxy)silane(TVDMS) as a capping agent, and tri(trimethylsilyl)phosphate as a neutralizer, dimethylcyclosiloxane(DMC), 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(V4), and octaphenylcyclotetrasiloxane(P8) were used as materials, a diphenylsilyl modified vinyl-containing polydimethylsiloxane was successfully synthesized through high-temperature anionic ring opening polymerization reaction environmentally friendly. Its structure and molecular weight data were characterized by FT-IR, HNMR, and GPC. After preparing it as a release coating, its properties were characterized by 180° peel force test, hydrophobic angle measurement, refractive index measurement, etc. The results show that the cured sample has high hardness and good transparency, and its refractive index increases with the increase of phenyl content. The release coating has a water contact angle of 100～110°, and as the phenyl content increases, the peel strength and residual adhesion decrease.更多还原