铁系亚胺基吡啶复配催化乙烯原位共聚产物的表征

李贺新; 石金永; 闫卫东; 胡友良

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铁系亚胺基吡啶复配催化乙烯原位共聚产物的表征

研究简报 | 更新时间：2021-03-19

- 铁系亚胺基吡啶复配催化乙烯原位共聚产物的表征
- CHARACTERIZATION OF BRANCHED POLYETHYLENE PREPARED BY in-situ COPOLYMERIZATION OF ETHYLENE WITH IRON (Ⅱ)(IMINO) PYRIDINES COMPLEXES
- 高分子学报 2004年第6期页码：913-916
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- 纸质出版日期：2004-12-20，
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李贺新, 石金永, 闫卫东, 胡友良. 铁系亚胺基吡啶复配催化乙烯原位共聚产物的表征[J]. 高分子学报, 2004,(6):913-916.

LI Hexin, SHI Jinyong, YAN Weidong, HU Youliang. CHARACTERIZATION OF BRANCHED POLYETHYLENE PREPARED BY in-situ COPOLYMERIZATION OF ETHYLENE WITH IRON (Ⅱ)(IMINO) PYRIDINES COMPLEXES[J]. Acta Polymerica Sinica, 2004,(6):913-916.
李贺新, 石金永, 闫卫东, 胡友良. 铁系亚胺基吡啶复配催化乙烯原位共聚产物的表征[J]. 高分子学报, 2004,(6):913-916. DOI：

LI Hexin, SHI Jinyong, YAN Weidong, HU Youliang. CHARACTERIZATION OF BRANCHED POLYETHYLENE PREPARED BY in-situ COPOLYMERIZATION OF ETHYLENE WITH IRON (Ⅱ)(IMINO) PYRIDINES COMPLEXES[J]. Acta Polymerica Sinica, 2004,(6):913-916. DOI：

摘要

Abstract

Branched polyethylene from ethylene as single monomer was prepared by the tandem catalyst system of {2-[2-Me C6H4 =(Me)]2C5H3N}FeCl2(1) and {2

6-[1-(2

6-Me2-4-Br-C6H4N=(Me)]2C5H3N} FeCl2 (2) activated with methylaluminoxane (MAO)．The products of polymerization were characterized by DSC

GPC and 13C-NMR. The results revealed that the copolymer produced by in situ copolymerization of ethylene was a mixture of branched polyethylene and α-olefin．The content of α-olefin in the mixture was increased with increasing the molar ratio of catalysts 1／2．The MWD paramelers of polyethylene and copolymer were 28.6 and 7.9

respectirely. 13C- NMR spectra showed that there were ethyl groups

butyl groups and long chain alkyl groups in the copolymer．The average degree of branching of such branched polyethylene was less than 5C／1000C．

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支化聚乙烯表征原位共聚铁系亚胺基吡啶聚合物

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