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Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene
Guo HL(郭慧龙); Guo,; Wang JY(王佳怡); Wu ZH(吴忠华); HL; Bi, JF; Wang, JY; Zhang, XQ; Jiang, SC; Wu, ZH
2017
发表期刊POLYMER (IF:3.684[JCR-2016],3.74[5-Year])
ISSN0032-3861
EISSN1873-2291
卷号119页码:176-184
文章类型Article
摘要Nd-based ternary catalyst systems are widely used for rubber industry. The effect of alkylaluminum cocatalysts has been investigated for decades. However, there is a lack of structural evidence, especially the quantitative result to illustrate the inner reasons. In the present paper, the effect of different alkylaluminum cocatalysts to the polymerization performance of isoprene has been studied. Catalysts adopted in the present paper all show high 1,4-cis selectivity (above 96%) of polyisoprene and kind of alkylaluminum is not the crucial factor to affect the microstructure of polyisoprene. By comparing the polymerization performance of isoprene and the local atomic structure around Nd centers, it can be concluded that the short carbon-chain in the alkylaluminum cocatalyst is helpful to increase the percent conversion of isoprene. While the carbon-chain length and number in each alkylaluminum cocatalyst can be used to modulate the molecular weight of the synthesized polyisoprene. All the results in the present paper provide a clue to improve the Nd-based ternary catalyst for rubber synthesis. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Correlation of alkylaluminum cocatalyst Polymerization performance XAFS
DOI10.1016/j.polymer.2017.05.028
关键词[WOS]X-RAY-ABSORPTION ; MONOMERIC NEODYMIUM CATALYST ; HIGH-CIS POLYBUTADIENE ; MOLECULAR-WEIGHT ; LOCAL-STRUCTURE ; XAFS ; 1,3-BUTADIENE ; COMPLEXES ; REACTIVITY ; LIGAND
收录类别SCI ; EI ; SCOPUS
语种英语
WOS研究方向Polymer Science
WOS类目Polymer Science
WOS记录号WOS:000403744200019
EI入藏号20172203702045
EI主题词Carbon - Catalyst selectivity - Chains - Isoprene - Polymerization - Rubber
EI分类号602.1 Mechanical Drives - 804 Chemical Products Generally - 804.1 Organic Compounds - 815.2 Polymerization - 818.1 Natural Rubber - 818.4 Rubber Factories and Machinery
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文献类型期刊论文
条目标识符https://ir.ihep.ac.cn/handle/311005/285221
专题多学科研究中心
作者单位中国科学院高能物理研究所
第一作者单位中国科学院高能物理研究所
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Guo HL,Guo,,Wang JY,et al. Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene[J]. POLYMER,2017,119:176-184.
APA 郭慧龙.,Guo,.,王佳怡.,吴忠华.,HL.,...&Wu, ZH.(2017).Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene.POLYMER,119,176-184.
MLA 郭慧龙,et al."Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene".POLYMER 119(2017):176-184.
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