Deduction of GPC Calibration Equation from Diffusion Separation Model and Conformational Entropy Model

Chuan-jie ZHANG; Shuang YANG; Er-qiang CHEN

您当前的位置：

首页 >

文章列表页 >

Deduction of GPC Calibration Equation from Diffusion Separation Model and Conformational Entropy Model

更新时间：2022-09-18

- Deduction of GPC Calibration Equation from Diffusion Separation Model and Conformational Entropy Model
- Polymer Bulletin Vol. 27, Issue 8, Pages: 90-96(2014)
- 作者机构：
  
  北京大学化学与分子工程学院高分子科学与工程系，高分子化学与物理教育部重点实验室，北京　100871
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014-08，
  
  Received：05 June 2014，
  
  Revised：16 June 2014，
扫描看全文
Chuan-jie ZHANG, Shuang YANG, Er-qiang CHEN. Deduction of GPC Calibration Equation from Diffusion Separation Model and Conformational Entropy Model. [J]. Polymer Bulletin 27(8):90-96(2014)
DOI：

Chuan-jie ZHANG, Shuang YANG, Er-qiang CHEN. Deduction of GPC Calibration Equation from Diffusion Separation Model and Conformational Entropy Model. [J]. Polymer Bulletin 27(8):90-96(2014) DOI：

摘要

高分子凝胶渗透色谱实验中，淋出体积与分子量的定量关系具有非常重要的意义，它通常由校准方程所给。然而目前高分子教材中对该方程的理论基础缺乏清晰的交代。本文通过扩散分离模型和构象熵模型分别推导出目前实验上普遍使用的两种校准方程，给出了方程中唯相系数的理论形式，并推论出校准方程适用的分子量范围。推论的正确性得到了文献结果的证实。

Abstract

In gel permeation chromatographic (GPC) experiments of polymers

the quantitative relationship between elution volume and molecular weight

which is generally given by an empirical calibration equation

is very important. However

a clear theoretical derivation to this equation is absent in present polymer textbooks. This paper derives the two calibration equations widely used in experiments in terms of diffusion separation model and conformational entropy model

and gives the theoretical expressions for the phenomenological coefficients involved in the calibration equations. We further deduce the application range of the equations

which can be confirmed by literatures.

关键词

凝胶渗透色谱法(GPC)校准方程扩散分离理论构象熵

Keywords

Gel permeation chromatography (GPC)Calibration equationDiffusion separation theoryConformational entropy

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Differences Between Networks of Gaussian Chains and Rubber Vulcanizates

Related Author

No data

Related Institution

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Department of Polymer Science and Engineering, Zhejiang University

高分子合成与功能构造教育部重点实验室，山西浙大新材料与化工研究院, 浙江大学高分子科学与工程学系

⁰