| 丙烯腈的阴离子均聚反应 |
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| 引用本文： | 施志清,洪良构,胡春圃,应圣康.丙烯腈的阴离子均聚反应[J].医学教育探索,1989(1). |
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| 作者姓名： | 施志清 洪良构 胡春圃 应圣康 |
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| 作者单位： | 华东化工学院材料科学研究所，华东化工学院材料科学研究所，华东化工学院材料科学研究所，华东化工学院材料科学研究所 上海有机氟材料研究所 |
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| 摘 要： | 以n-BuLi为引发剂,研究了丙烯腈(AN)在正己烷等溶剂中的阴离子均聚反应。结果表明:PAN的分子量与n-BuLi浓度无关,随AN浓度增加而增大;聚合开始几分钟就达到最终转化率的80%。提出了引发剂效率的估算公式。用环氧乙烷、乙烯基吡啶对AN盖帽减活,能抑制部分副反应。从聚合产物的GPC和红外光谱分析,讨论了反应条件对聚合副反应的影响。
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| 关 键 词： | 丙烯腈 阴离子型 聚合 正丁基锂 凝胶渗透色谱 聚丙烯腈 减活 |
Anionic Polymerization of Acrylonitrile |
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| Shi Zhiqing,Hong Lianggou,Hu Chunpu Ying Shengkang.Anionic Polymerization of Acrylonitrile[J].Researches in Medical Education,1989(1). |
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| Authors: | Shi Zhiqing Hong Lianggou Hu Chunpu Ying Shengkang |
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| Institution: | Research Institute of Materials Science and Engineering |
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| Abstract: | Initiated by n-BuLi in n-hexane, the anionic homopolymerization of AN has been studied. The results show that the molecular weight of PAN is independent of the concentraion of n BuLi and is increased with the increase of AN concentration. The AN conversion could reach 80% of the ultimate conversion in a few minutes. It has been found that EO-cap and VP-cap deactivation could reduce parts of side-reactions and a formula for estimating initiator efficiency is suggested. Analysing by GPC and IR graphs of PAN obtained, we have discussed the effect of reaction conditions on side-reactions of AN polymerization. |
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| Keywords: | acrylonitrile anionic polymerization butyllithium gel permeation chromatography polyacrylonitrile deactivation |
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