| DMC聚醚的降解研究 |
| |
| 引用本文： | 颜再荣,吴立传,余爱芳,杨淑英,陈立班.DMC聚醚的降解研究[J].高分子学报,2003(1):129-132. |
| |
| 作者姓名： | 颜再荣 吴立传 余爱芳 杨淑英 陈立班 |
| |
| 作者单位： | 中国科学院广州化学研究所,广州,510650 |
| |
| 基金项目： | 广东省自然科学基金资助项目 (基金号 990 92 4) |
| |
| 摘 要： | 研究DMC聚醚 (双金属催化剂的聚环氧丙烷 )的降解现象 .讨论了各种因素对降解的影响 ,以及降解中不饱和度的变化情况 .实验表明 ,DMC聚醚的降解与自由基有关 ,降解在常温下 1 5天后开始发生 ,在抗氧剂存在下受到抑制 .加入抗氧剂 1 0 1 0和 61 8可使聚醚得以稳定储存
|
| 关 键 词： | DMC聚醚 降解 自由基 抗氧剂 |
| 修稿时间： | 2002年4月3日 |
DEGRADATION OF DMC POLYETHER POLYOLS |
| |
| YAN Zairong,WU Lichuan,YU Aifang,YANG Shuying,CHEN Liban.DEGRADATION OF DMC POLYETHER POLYOLS[J].Acta Polymerica Sinica,2003(1):129-132. |
| |
| Authors: | YAN Zairong WU Lichuan YU Aifang YANG Shuying CHEN Liban |
| |
| Abstract: | DMC polyether polyols, prepared by the polymerization of propylene oxid with dimetallic catalyot, have been found to suffer obvious degradation and decrease their viscosity and molecular weight during storage. The degradation was found to be influenced by free-radicals,temperature light, and oxygen. However, the degradation can not be stopped by isolation from air and may be eliminated by addition of anti-oxidants. This implies that the degradation is not an stoichiometric oxidation reaction with oxygen in air, but some kind of free-radical induced chain reaction. |
| |
| Keywords: | DMC polyether polyols Degradation Free-radical Anti-oxidants |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
