| 聚合物载体-稀土金属络合物的研究 Ⅵ.聚合物载体-钕络合物对丁二烯聚合的催化活性 |
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| 引用本文： | 刘光冬,李玉良. 聚合物载体-稀土金属络合物的研究 Ⅵ.聚合物载体-钕络合物对丁二烯聚合的催化活性[J]. 高分子学报, 1990, 0(2): 136-141 |
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| 作者姓名： | 刘光冬 李玉良 |
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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： | 红外光谱研究表明,苯乙烯-丙烯酸共聚物载体-钕络合物具有双配位的羧酸根结构,Nd-O键富有共价性。考察了载体钕络合物催化丁二烯聚合的一般规律,载体钕络合物的组成与聚合活性的关系。在溶剂THF或二氧六环的存在下制得的苯乙烯-丙烯酸共聚物最适宜于合成高活性的载体钕络合物。功能团-COOH含量大约12％,金属钕含量与功能团含量摩尔比在0.20左右的载体钕络合物催化活性最佳。
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| 关 键 词： | 丁二烯 聚合 稀土 载体催化剂 |
| 收稿时间： | 1988-08-30 |
EFFECT OF SOME FACTORS OF POLYMER-SUPPORTED NEODYMIUM COMPLEXES ON THE CATALYTIC ACTIVITY IN THE POLYMERIZATION OF BUTADIENE |
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| LIU Guang-dong,LI Yu-liang. EFFECT OF SOME FACTORS OF POLYMER-SUPPORTED NEODYMIUM COMPLEXES ON THE CATALYTIC ACTIVITY IN THE POLYMERIZATION OF BUTADIENE[J]. Acta Polymerica Sinica, 1990, 0(2): 136-141 |
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| Authors: | LIU Guang-dong LI Yu-liang |
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| Affiliation: | Changchun Institute of Applied Chemistry; Academia Sinica; Changchun |
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| Abstract: | The IR spectra of styrene-acrylic acid copolymer-supported neodymium complexes were investigated. The complexes possess a structure of bidentate carboxylate groups and the Nd-O bond in the complexes is rich in covalency. The general feature of the butadiene polymerization catalyzed by the supported neodymium complexes as well as the relationship between the nature, constitution of the complexes and the catalytic activity were studied. The copolymers prepared by solution polymerization in THF or dioxane were better supporter for the synthesis of highly active supported catalyst. The polymer-supported neodymium complexes containing about 12wt% functional group-COOH gave optimum catalytic actiity at Nd/-COOH molar ratio=0.20. |
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