Liquid vinyl-silicone resins doped with titanium were prepraed from hydroxy vinyl polysiloxane and titanium isopropoxide, whose structures were characterized by nuclear magnetic resonance spectroscopy and Fourier-transform infrared spectroscopy ( FTIR) . Results showed that the refractive index could reach up to 1. 445 when the dopping amount of titanium was 17. 8wt％. Compared to the blank silicone resins, the com-prehensive performance of the cured silicone resin doped with titanium ( 17 . 8 wt％) was significantly im-proved. The tensile strength was enhanced from 1. 2 MPa to 1. 6 MPa, and the water vapor permeability was lowed from 28. 6 g/(m2·24 h) to 12. 5 g/(m2·24 h).%以乙烯基聚硅氧烷混合物和钛酸异丙酯为原料制得浅黄色透明钛掺杂液体乙烯基硅树脂,利用核磁(1 H、29 Si)和红外光谱(FT-IR)对其结构进行表征.结果表明:当钛掺杂质量分数17.8％时,聚合物的折射率达1.445.固化物的综合性能相较纯聚硅氧烷得到明显提升,拉伸强度由1.2 MPa提高至1.6 MPa,水蒸气渗透率从28.6 g/(m 2·24 h)降低至12.5 g/(m 2·24 h).
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