| 稀土催化丁二烯-异戊二烯共聚合的研究 |
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| 引用本文： | 代全权,薛冬桦,董为民.稀土催化丁二烯-异戊二烯共聚合的研究[J].吉林工学院学报,2008,29(2):135-138. |
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| 作者姓名： | 代全权 薛冬桦 董为民 |
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| 作者单位： | 长春工业大学生物工程学院 吉林长春130012(代全权，薛冬桦)，中国科学院长春应用化学研究所 吉林长春130022(董为民) |
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| 摘 要： | 研究了丁二烯（BD）和异戊二烯（IP）在Nd（vers）3-Al（i—Bu）2H—Al（i—Bu）2Cl催化体系下的共聚合，催化剂用量、Al（i—Bu）2H／Nd（vers）3（简称Al／Nd）、Al（i—Bu）2Cl／Nd（vers）。（简称Cl／Nd）对聚合都有很大影响。经IR和^1H—NMR分析表明，共聚物中丁二烯和异戊二烯的链节都是以顺-1，4结构为主，含量均大于98％。共聚物中两种链节的含量与单体配料比接近，随单体组成中异戊二烯含量的增加，分子量逐渐增大，分布逐渐变窄.
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| 关 键 词： | 丁二烯 异戊二烯 共聚合 分子量分布 |
The copolymerization of butadiene and isoprene by using the rare earth catalyst system |
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| DAI Quan-quan,XUE Dong-hua,DONG Wei-min.The copolymerization of butadiene and isoprene by using the rare earth catalyst system[J].Journal of Jilin Institute of Technology,2008,29(2):135-138. |
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| Authors: | DAI Quan-quan XUE Dong-hua DONG Wei-min |
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| Institution: | DAI Quan-quan, XUE Dong-hua , DONG Wei-min ( 1. School of Biological Engineering, Changchun University of Technology, Changchun 130012, China ;2. Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China) |
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| Abstract: | Copolymerization of butadiene and isoprene was studied with Nd(vers)3-Al(i-Bu)2H-Al(i-Bu)2Cl catalyst system.The content of catalyst,the molar ratio of Al(i-Bu)2H/Nd(vers)3 and Al(i-Bu)2Cl/Nd(vers)3 have a obvious effect on copolymerization.In a 5 L autoclave,it was found that both monomer units in the copolymer have high cis-1,4 content by IR and 1H-NMR.The molar ratio of the two monomer units was similar to the monomer feed ratio.The molecular mass increased and molecular mass distribution became narrow with the increase of IP feed ratio. |
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| Keywords: | butadiene isoprene copolymerization molecular mass distribution |
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