| π－烯丙基稀土配合物的合成、结构及其催化烯烃聚合反应机理的研究 Ⅲ．LiLn（π－C_3H_5）_4·nD催化异戊二烯和苯乙烯均聚合反应的研究 |
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| 引用本文： | 李凤富,金鹰泰,裴奉奎,王佛松.π－烯丙基稀土配合物的合成、结构及其催化烯烃聚合反应机理的研究 Ⅲ．LiLn（π－C_3H_5）_4·nD催化异戊二烯和苯乙烯均聚合反应的研究[J].高分子学报,1994,0(3):257-262. |
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| 作者姓名： | 李凤富 金鹰泰 裴奉奎 王佛松 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 本文研究了ＬｉＬｎ（π－Ｃ_３Ｈ_５）_４·ｎＤ（Ｌｎ＝Ｌａ、Ｔｂ，ｎ＝３；Ｌｎ＝Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍ、Ｇｄ、Ｅｒ，ｎ＝２；Ｌｎ＝Ｙ、Ｄｙ，ｎ＝２．５；Ｄ为二氧六环）催化异戊二烯和苯乙烯的均聚合反应．其中，钇配合物的催化活性为最高．聚异戊二烯顺式－１，４链节含量在４３－８１％．聚合体系内少量给电子体的加入使聚合物中３，４－链节含量高达８４％．所得聚苯乙烯为无规结构．
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| 关 键 词： | π－烯丙基稀土配合物，异成二烯，苯乙烯，均聚合反应 |
| 收稿时间： | 1992-01-28 |
SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHENISM OF OLEFIN POLYMERIZATION Ⅲ.STUDIES ON THE POLYMERIZATION OF ISOPRENE AND STYRENE WITH LiLn (π-C_3H_5)_4·nD COMPLEXES |
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| LI Feng-fu,JIN Ying-tai,PEI Feng-kui,WANG Fo-song.SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHENISM OF OLEFIN POLYMERIZATION Ⅲ.STUDIES ON THE POLYMERIZATION OF ISOPRENE AND STYRENE WITH LiLn (π-C_3H_5)_4·nD COMPLEXES[J].Acta Polymerica Sinica,1994,0(3):257-262. |
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| Authors: | LI Feng-fu JIN Ying-tai PEI Feng-kui WANG Fo-song |
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| Institution: | Changchun Institute of Applied Chemistry; Academia; Sinica; Changchun; 130022 |
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| Abstract: | LiLn (π - C_3H_5)_4·nD (Ln=La,Tb,n=3;Ln=Ce,Pr,ND,Sm, Gd, Er, n = 2;Ln=Y,Dy,n= 2. 5; D=dioxane) can polymerize isoprene and styrene except Erium complexes, in which Yittrium complex is with the highest activity.About 43 -81% cis- 1.4 chains are contained in the polyisoprene with different complexes. The insertion reaction of isoprene between π-allyl and rare earth in the previoius paper was confiremed.High 3,4-polyisoprene was obtained by adding some Lewis bases to the polymerization systems.Polystyrene was identified as atactic polymer by IR spectrum . |
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| Keywords: | Allyl rare earth complex Isoprene Styrene Polymerization |
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