摘要
以己二酸和二甲基-二乙酰氧基硅烷为单体,采用熔融缩聚法合成了聚(己二酸二甲基硅基酯),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(己二酸二甲基硅基酯)的重均分子量为4 021,分子量分布指数为2.10,玻璃化转变温度为-42.186℃,热稳定性较好,其在四氢呋喃水溶液中不稳定,随着放置时间的延长,降解速率变缓。
Poly （ dimethylsilyloxyl adipate ） was synthesized with adipic acid and diaeetoxydimethylsilane by melting polycondensation. The polymer was characterized by ^1H-nuclear magnetic resonance, differential scanning calorimetry, thermo-gravimetric analysis and gel permeation chromatography. The results showed that the weight-average molecular weight and its distribution index of poly（ dimethylsilyloxyl adipate） was 4 021, 2. 10, respectively. The glass transition temperature was -42. 186 %, and the thermal stability was good. The stability of poly （dimethylsilyloxyl adipate ） in tetrahydrofuran was bad, and with increasing storage time, the degradation rate became very slow.
出处
《合成橡胶工业》
CAS
CSCD
2010年第3期176-178,共3页
China Synthetic Rubber Industry
基金
国家自然科学基金资助项目(20274022)
