| 反式-1,4-聚异戊二烯的后处理及质量稳定化 |
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| 引用本文： | 宋景社,马祖伟,黄宝琛,刘向峰,孙利梅,余鼎声. 反式-1,4-聚异戊二烯的后处理及质量稳定化[J]. 合成橡胶工业, 2002, 25(3): 154-157 |
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| 作者姓名： | 宋景社 马祖伟 黄宝琛 刘向峰 孙利梅 余鼎声 |
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| 作者单位： | 1. 青岛化工学院高分子材料系,山东青岛,266042
2. 北京化工大学高分子材料系,北京,100029 |
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| 基金项目： | 国家自然科学基金资助项目(29574166，59673004)，国家“863”计划新材料领域资助项目(863-715-007-0040)。 |
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| 摘 要： | 研究了以式-1，4-聚异戊二烯（TPI）的后处理及老化对其相对分子质量及结构与性能的影响。结果表明，TPI极易老化，其相对分子质量随老化时间的延长而迅速降低，熔点及结晶度也逐渐降低。用空气、水、乙醇终止的聚合产物的相对分子质量及老化行为相近，防老剂264的加入极大地延缓了TPI的老化降解。TPI较理想而廉价的后处理方式为用定量水终止聚合，同时加入质量分数1%的防老剂264进行处理，可以保证TPI贮存过程中的稳定性。
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| 关 键 词： | 反式－1 4－聚异戊二烯 后处理 质量稳定化 老化 相对分子质量 贮存稳定性 |
| 文章编号： | 1000-1255(2002)03-0154-04 |
After- treatment and aging of trans- 1,4- polyisoprene |
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| Song Jingshe,Ma Zuwei,Huang Baochen,Liu Xiangfeng,Sun Limei,Yu Dingsheng. After- treatment and aging of trans- 1,4- polyisoprene[J]. China Synthetic Rubber Industry, 2002, 25(3): 154-157 |
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| Authors: | Song Jingshe Ma Zuwei Huang Baochen Liu Xiangfeng Sun Limei Yu Dingsheng |
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| Affiliation: | Song Jingshe1,Ma Zuwei1,Huang Baochen1,Liu Xiangfeng1,Sun Limei1,Yu Dingsheng2 |
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| Abstract: | After-treatment and aging of trans-1,4-polyisoprene(TPI) were studied. The experimental results showed that TPI was easy to degrade,its relative molecular mass, melt point and crystallinity degree decreased with the increase of aging time.Different after-treatment patterns affected the relative molecular mass and aging behavior of TPI. The addition of antioxidant 264 retarded the aging of TPI obviously.The ideal after-treatment pattern was termination with water and addition antioxidant 264 simultaneously,which could keep the polymer stable in stockpile process. |
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| Keywords: | trans-1 4-polyisoprene after-treatment aging relative molecular mass storage stability |
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