Application of Fractionation Technique Based on Absorption Chromatography in Polyolefin Characterization

DU Bin; CHEN Shang-tao; LI Rong-bo

doi:10.14028/j.cnki.1003-3726.2023.12.008

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Application of Fractionation Technique Based on Absorption Chromatography in Polyolefin Characterization

更新时间：2023-11-23

- Application of Fractionation Technique Based on Absorption Chromatography in Polyolefin Characterization
- Polymer Bulletin Vol. 36, Issue 12, Pages: 1679-1690(2023)
- 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：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2023.12.008
  CLC：
- Published：20 December 2023，
  
  Received：09 March 2023，
  
  Revised：23 March 2023，
扫描看全文
DU Bin, CHEN Shang-tao, LI Rong-bo. Application of Fractionation Technique Based on Absorption Chromatography in Polyolefin Characterization. [J]. Polymer Bulletin 36(12):1679-1690(2023)
DOI：

DU Bin, CHEN Shang-tao, LI Rong-bo. Application of Fractionation Technique Based on Absorption Chromatography in Polyolefin Characterization. [J]. Polymer Bulletin 36(12):1679-1690(2023) DOI： 10.14028/j.cnki.1003-3726.2023.12.008.

摘要

聚烯烃树脂具有复杂的化学组成和链结构

液相分级技术是有效识别其精细结构的常用表征手段。相对使用较为广泛的结晶分级技术

高温-温度梯度相互作用色谱技术(HT-TGIC)

作为一种最新的分级方法

具有可分析无定形聚烯烃样品的优势

大大拓宽了分级技术在聚烯烃树脂中的应用范围。本文列举了温度梯度相互作用色谱(TGIC)在聚烯烃表征中的典型案列

特别是针对结晶分级技术局限的低结晶度/无定形聚烯烃树脂。基于TGIC与凝胶渗透色谱(GPC)技术的联用分析

揭示了聚烯烃材料链结构的二维信息

为性能优异的新型聚烯烃材料研发与设计提供支撑和指导。

Abstract

Liquid chromatography fractionation technique is a typical characterization method for efficiently determining the fine structure of polyolefin resins

which have complex chemical composition distribution and chain structures. Compared with the widely used crystallization-based fractionation techniques

high temperature-temperature gradient interaction chromatography (HT-TGIC)

as a novel fractionation method

holds great advantages in analyzing amorphous polyolefins

thus broadening the application of fractionation techniques in polyolefin resins. In this paper

typical applications of HT-TGIC in the polyolefin characterization were demonstrated

especially for low crystallinity/amorphous polyolefin resins that are limited by crystallization fractionation techniques. And more information about bivariate chain structures of polyolefin could be revealed by TGIC coupled with GPC technology. This could provide support and guidance for the development and design of new polyolefin materials with excellent performance.

关键词

聚烯烃化学组成分布温度梯度相互作用色谱分级吸附

Keywords

PolyolefinsChemical composition distributionThermal gradient interaction chromatographyFractionationAdsorption

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