摘要
以草酸与二甲基-二乙酰氧基硅烷为单体,采用熔融缩聚法合成了聚(二甲基硅基草酸酯),并通过1H-核磁共振、差示扫描量热法、热重分析、凝胶渗透色谱对聚合物进行了表征。结果表明,聚(二甲基硅基草酸酯)的特性黏数为0.173 mL/g、数均分子量为28496、分子量分布指数为1.38,其主链中存在结晶区,且热稳定性高。
Poly（dimethylsilyloxyl oxalate） was synthesized with oxalic acid and diacetoxydimethylsilane by melting polycondensation. The polymer was characterized by ^1H-nuclear magnetic resonance, differential scanning calorimetry, thermogravimetric analysis and gel permeation chromatography. The resuits showed that the intrinsic viscosity of poly（dimethylsilyloxyl oxalate ） was 0.173mL/g, number-average molecular meight and its distribution was 28 496, 1.38, respectively. The crystalline region existed in the main chain of poly （dimethylsilyloxyl oxalate）, and the thermal stability was well.
出处
《合成橡胶工业》
CAS
CSCD
2009年第6期463-465,共3页
China Synthetic Rubber Industry
基金
国家自然科学基金资助项目(20274022)
