SOLUTE DIFFUSION IN POLYMERS .2. FOURIER ESTIMATION OF CAPILLARY COLUMN INVERSE GAS-CHROMATOGRAPHY DATA

被引：63

作者：

PAWLISCH, CA ^{[1
]}

BRIC, JR ^{[1
]}

LAURENCE, RL ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT CHEM ENGN,AMHERST,MA 01003

来源：

MACROMOLECULES | 1988年 / 21卷 / 06期

关键词：

CHROMATOGRAPHIC ANALYSIS - Gas - SOLUTIONS - Diffusion;

D O I：

10.1021/ma00184a027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this paper, we present two improvements that overcome these limitations: (1) a model that accounts for a nonuniform polymer film and (2) a method for parameter estimation in the Fourier domain. The usefulness of the improvements is demonstrated by measuring the diffusivity and activity of benzene, toluene, and ethylbenzene in polystyrene, between 110 and 140 degree C, the system investigated in part 1, and of methanol, methyl acetate, and methyl methacrylate in poly(methyl methacrylate) at temperatures above the glass transition temperature.

引用

页码：1685 / 1698

页数：14

共 30 条

[1] DIFFUSION OF ORGANIC VAPORS AT LOW CONCENTRATIONS IN GLASSY PVC, POLYSTYRENE, AND PMMA [J].