DIFFUSIVITY AND SOLUBILITY OF ORGANIC VAPORS IN MODIFIED POLYETHYLENE FILMS .1. TECHNIQUE AND ANALYSIS OF RESULTS

被引：11

作者：

ABOULNASR, OT ^{[1
]}

HUANG, RYM ^{[1
]}

机构：

[1] UNIV WATERLOO,DEPT CHEM ENGN,WATERLOO N2L 3G1,ONTARIO,CANADA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1979年 / 23卷 / 06期

关键词：

D O I：

10.1002/app.1979.070230622

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new method of analyzing unsteady‐state sorption data was developed to determine the diffusivity and solubility of vapors in polymer films. The equilibrium weight increase yields the solubility directly. Analysis of the unsteady‐state data gives the diffusion coefficient and its concentration dependence. A complete method for the analysis of either absorption or desorption results is presented for any type of concentration dependence of the diffusion coefficient. In this paper the method is applied to the Fujita free volume theory. The apparatus and the experimental procedures are discussed in detail. Copyright © 1979 John Wiley & Sons, Inc.

引用

页码：1819 / 1831

页数：13

共 20 条

[11] FRENSDORF HK, 1960, J POLYM SCI A, V2, P333
[12] THE TIME LAG IN DIFFUSION
FRISCH, HL
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1957, 61 (01) : 93 - 95
[13] CONCENTRATION AND TEMPERATURE DEPENDENCE OF DIFFUSION COEFFICIENTS FOR SYSTEMS POLYMETHYL ACRYLATE AND NORMAL-ALKYL ACETATES
FUJITA, H
KISHIMOTO, A
MATSUMOTO, K
[J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1960, 56 (03): : 424 - 437
[14] Fujita H., 1961, FORTSCHR HOCHPOLYM F, V3, P1, DOI [DOI 10.1007/BFB0050514, 10.1007/BF02189382]
[15] Fujita H., 1968, DIFFUSION POLYM
[16] STABLE EXPLICIT DIFFERENCE APPROXIMATIONS TO PARABOLIC PARTIAL DIFFERENTIAL EQUATIONS
LIU, SL
[J]. AICHE JOURNAL, 1969, 15 (03) : 334 - &
[17] NUMERICAL SOLUTION OF 2-POINT BOUNDARY VALUE PROBLEMS IN SIMULTANEOUS 2ND-ORDER NONLINEAR ORDINARY DIFFERENTIAL EQUATIONS
LIU, SL
[J]. CHEMICAL ENGINEERING SCIENCE, 1967, 22 (06) : 871 - &
[18] DIFFUSION IN ETHYLENE POLYMERS .3. EFFECTS OF TEMPERATURE AND PRESSURE
MCCALL, DW
SLICHTER, WP
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (08) : 1861 - 1868
[19] MEASUREMENT OF CONCENTRATION GRADIENTS FOR DIFFUSION OF VAPORS IN POLYMERS
RICHMAN, D
LONG, FA
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1960, 82 (03) : 509 - 513
[20] Saul'yev VK, 1964, INTEGRATION EQUATION

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