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Multimodal Polypropylene Synthesis Using Cyclic Borane Cocatalyst

delete2025-09-01
delete0
PRE
AI
D
Daichi Oka
N
Nishiyama, Shunsuke
Y
Yuushou Nakayama
T
Takeshi Shiono
R
Ryō Tanaka *
DOI：10.1021/acs.organomet.5c00180delete
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摘要

摘要

En 中文
报道了一种使用C2对称锆茂催化剂合成双峰等规聚丙烯（iPP）的策略。与需要多反应器系统或多种催化剂的常规多峰聚合方法不同，本研究的方法利用来自硼基助催化剂1的多种对阴离子。使用锆茂2进行丙烯聚合时，在结合助催化剂1的情况下制备的聚丙烯呈现出双峰分子量分布，且未损失立体特异性。对使用1获得的聚合物的链端分析证实，其链增长和终止倾向与来自常规硼烷活化剂B(C6F5)3的聚合物不同，解释了所观察到的双峰特性。值得注意的是，该分子量分布可通过聚合温度和溶剂进行调控，突显了对这些终止反应控制的潜力。
Keyword:
MOLECULAR-WEIGHT CHAIN
PROPYLENE POLYMERIZATION
OLEFIN POLYMERIZATION
PROPENE POLYMERIZATION
MELT RHEOLOGY
CATALYSTS
COMPLEXES
ZIRCONIUM
DISTRIBUTIONS
TEMPERATURE

期刊

Organometallics 封面图
Organometallics
IF:
2.9
论文数:
618
被引数:
2.8W

机构

H
Hiroshima University
学者数:
2.1W
论文数: 1.5W
被引数: 1.3W
引用论文

引用论文

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