STUDY ON COMPOSITIONAL HETEROGENEITY OF ETHYLENE PROPYLENE COPOLYMER PRODUCED BY HOMOGENEOUS CATALYST

XU Junting; FAN Zhiqiang; WANG Qi; FENG Linxian

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STUDY ON COMPOSITIONAL HETEROGENEITY OF ETHYLENE PROPYLENE COPOLYMER PRODUCED BY HOMOGENEOUS CATALYST

Research Bulletin | 更新时间：2021-03-19

- STUDY ON COMPOSITIONAL HETEROGENEITY OF ETHYLENE PROPYLENE COPOLYMER PRODUCED BY HOMOGENEOUS CATALYST
- Acta Polymerica Sinica Issue 5, Pages: 624-628(1997)
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- Published：20 October 1997，
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XU Junting, FAN Zhiqiang, WANG Qi, FENG Linxian. STUDY ON COMPOSITIONAL HETEROGENEITY OF ETHYLENE PROPYLENE COPOLYMER PRODUCED BY HOMOGENEOUS CATALYST. [J]. Acta Polymerica Sinica (5):624-628(1997)
DOI：

XU Junting, FAN Zhiqiang, WANG Qi, FENG Linxian. STUDY ON COMPOSITIONAL HETEROGENEITY OF ETHYLENE PROPYLENE COPOLYMER PRODUCED BY HOMOGENEOUS CATALYST. [J]. Acta Polymerica Sinica (5):624-628(1997) DOI：

摘要

均相催化剂制备的乙丙共聚物的组成均匀性研究徐君庭范志强王齐封麟先（浙江大学高分子科学与工程学系杭州３１００２７）关键词均相催化剂

乙丙共聚物

组成均匀性在高聚物的制备过程中

由于多种活性中心的存在、活性中心随时间的变化及聚合条件的波动等因素使得聚合物具有不均匀性．聚合物的不均匀性包括分子间的不均匀性和分子内的不均匀性．分子间的不均匀性是指不同的聚合物链分子具有不同的分子量、组成和等规度?...

Abstract

Intermolecular compositional heterogeneity of ethylene propylene random copolymer produced by homogeneous catalyst was investigated by using fractionation

13 C NMR and GPC techniques.Combining with degradation

intramolecular compositional heterogeneity was also examined.It was found that in our sample intermolecular compositional heterogeneity existed to some extent

intramolecular compositional heterogeneity was negligible in this copolymer.

关键词

均相催化剂乙丙共聚物组成均匀性

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