THE EFFECT OF MOLECULAR-SIZE ON NON-FICKIAN SORPTION IN GLASSY-POLYMERS

被引：30

作者：

MILLS, PJ ^{[1
]}

KRAMER, EJ ^{[1
]}

机构：

[1] CORNELL UNIV,CTR MAT SCI,ITHACA,NY 14850

来源：

JOURNAL OF MATERIALS SCIENCE | 1986年 / 21卷 / 12期

关键词：

ORGANIC COMPOUNDS - Diffusion - POLYMETHYL METHACRYLATE - Amorphous;

D O I：

10.1007/BF01106522

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rutherford backscattering spectrometry has been used to determine the concentration against depth profiles of n-iodoalkanes diffusing into a polymer glass photoresist. All the iodoalkanes smaller than iodohexane show strongly non-Fickian diffusion. After an induction time a sharp front forms, with almost no concentration gradient behind the front. Ahead of the front the concentration decreases exponentially with depth, a form predicted for Fickian diffusion ahead of a moving boundary. The polymer investigated was a commercial dry film photoresist, Riston. Its nominal chemical composition is close to that of polymethylmethacrylate.

引用

页码：4151 / 4156

页数：6

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