| 低等规度聚丙烯固相接枝 |
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| 引用本文： | 陶颖,李剑,周持兴.低等规度聚丙烯固相接枝[J].高分子材料科学与工程,2003,19(4):72-74. |
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| 作者姓名： | 陶颖 李剑 周持兴 |
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| 作者单位： | 上海交通大学高分子材料科学与工程系,上海,200240 |
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| 摘 要： | 研究了低等规度聚丙烯(LIPP)固相接枝马来酸酐(MAH)。红外谱图证实了MAH成功地接枝在LIPP链上。用化学滴定法测定了接枝物的接枝率，考察了接枝率与单体，引发剂和时间的关系。另外将LIPP按等规度进行分级，用NMR对每个级份进行了表征。最后将接枝物也分级，测定了每个级份的接枝率，探讨了等规度与接枝率的关系。
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| 关 键 词： | 等规度 聚丙烯 固相接枝 马来酸酐 引发剂 接枝率 |
| 文章编号： | 1000-7555(2003)04-0072-03 |
| 修稿时间： | 2001年9月11日 |
STUDY OF SOLID PHASE GRAFTING ONTO LOW ISOTACTIC POLYPROPYLENE |
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| TAO Ying,LI Jian,ZHOU Chi-xing.STUDY OF SOLID PHASE GRAFTING ONTO LOW ISOTACTIC POLYPROPYLENE[J].Polymer Materials Science & Engineering,2003,19(4):72-74. |
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| Authors: | TAO Ying LI Jian ZHOU Chi-xing |
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| Abstract: | Solid phase grafting onto low isotactic polypropylene (LIPP) was studied in this paper. The success of being grafted was proved by using FT-IR spectrums. The grafting ratio of each sample was accurately measured by titration. The relationships between grafting ratios and monomer, initiator, and time were investigated. Then LIPP was fractionlized by tacticity and each fraction was characterized by NMR. LIPP-g-MAH is also fractionlized and grafting ratio of each fraction was measured. The effect of tacticity on grafting ratio was then discussed. |
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| Keywords: | polypropylene graft maleic anhydride tacticity |
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