Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene

doi:10.1016/j.polymer.2017.05.028

	Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene
	Bi, JF; Wang, JY; Zhang, XQ; Jiang, SC; Wu, ZH; Wu ZH(吴忠华); HL; Guo HL(郭慧龙); Guo,; Wang JY(王佳怡)
刊名	POLYMER
	2017
卷号	119 页码:176-184
关键词	Correlation of alkylaluminum cocatalyst Polymerization performance XAFS
ISSN号	0032-3861
DOI	10.1016/j.polymer.2017.05.028
文献子类	Article
英文摘要	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.
电子版国际标准刊号	1873-2291
WOS关键词	X-RAY-ABSORPTION ; MONOMERIC NEODYMIUM CATALYST ; HIGH-CIS POLYBUTADIENE ; MOLECULAR-WEIGHT ; LOCAL-STRUCTURE ; XAFS ; 1,3-BUTADIENE ; COMPLEXES ; REACTIVITY ; LIGAND
WOS研究方向	Polymer Science
语种	英语
WOS记录号	WOS:000403744200019
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285221]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Bi, JF,Wang, JY,Zhang, XQ,et al. Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene[J]. POLYMER,2017,119:176-184.
APA	Bi, JF.,Wang, JY.,Zhang, XQ.,Jiang, SC.,Wu, ZH.,...&王佳怡.(2017).Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene.POLYMER,119,176-184.
MLA	Bi, JF,et al."Correlation of alkylaluminum cocatalyst in Nd-based ternary catalyst with the polymerization performance of isoprene".POLYMER 119(2017):176-184.