聚烯烃弹性体的链结构表征

窦彤彤; 李荣波; 陈商涛; 王科峰; 杜斌

doi:10.14028/j.cnki.1003-3726.2025.25.008

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聚烯烃弹性体的链结构表征

研究论文 | 更新时间：2025-05-23

- 聚烯烃弹性体的链结构表征
- Chain Structure Characterization of Polyolefin Elastomer
- 高分子通报 2025年38卷第6期页码：893-902
- 作者机构：
  
  中国石油天然气股份有限公司石油化工研究院，北京 102206
- 作者简介：
  
  dubin010@petrochina.com.cn
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2025.25.008
  中图分类号：
- 收稿日期：2025-01-08，
  
  录用日期：2025-03-03，
  
  网络出版日期：2025-04-03，
  
  纸质出版日期：2025-06-20
- 稿件说明：
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窦彤彤, 李荣波, 陈商涛, 王科峰, 杜斌. 聚烯烃弹性体的链结构表征. 高分子通报, 2025, 38(6), 893-902.

Dou, T. T.; Li, R. B.; Chen, S. T.; Wang, K. F.; Du, B. Chain structure characterization of polyolefin elastomer. Polym. Bull. (in Chinese), 2025, 38(6), 893-902.
窦彤彤, 李荣波, 陈商涛, 王科峰, 杜斌. 聚烯烃弹性体的链结构表征. 高分子通报, 2025, 38(6), 893-902. DOI： 10.14028/j.cnki.1003-3726.2025.25.008.

Dou, T. T.; Li, R. B.; Chen, S. T.; Wang, K. F.; Du, B. Chain structure characterization of polyolefin elastomer. Polym. Bull. (in Chinese), 2025, 38(6), 893-902. DOI： 10.14028/j.cnki.1003-3726.2025.25.008.

摘要

利用示差扫描量热分析仪（DSC）、高温凝胶渗透色谱仪（HT-GPC）、温度梯度相互作用色谱（TGIC）、交叉分级色谱（CFC）及核磁共振波谱（

C-NMR）系统研究了多种具有不同熔融指数、密度和共聚单体类型的商品化聚烯烃弹性体（POE）的链结构，形成了全面表征POE相对分子质量及其分布、短链支化度分布、短链支化链间分布、共聚单体序列分布等链结构的立体化方法，从而便于构建不同POE产品的结构性能构效关系。本工作可为POE的分子结构设计和性能调控提供研究方法参考。

Abstract

Systematic investigations were performed on the chain structure of several commercial polyolefin elastomers (POE) with different melt indices and densities by employing differential scanning calorimetry (DSC)

high-temperature gel permeation chromatography (HT-GPC)

temperature gradient interaction chromatography (TGIC)

cross fractionation chromatography (CFC)

and carbon nuclear magnetic resonance spectroscopy (

C-NMR). It provided a useful method to comprehensively characterize the molecular weight

molecular weight distribution

degree

and intra- and inter-chain distribution of short chain branching

as well as the sequence distribution of different POE samples

aiming to determine the structure-property correlation. The present work would be helpful for the design of molecular structures and control of physical-mechanical properties.

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references

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