POLYMER MUTUAL DIFFUSION MEASUREMENTS USING INFRARED ATR SPECTROSCOPY

被引：62

作者：

VANALSTEN, JG

LUSTIG, SR

机构：

[1] Central Research and Development Dupont Company, Experimental Station, Wilmington

来源：

MACROMOLECULES | 1992年 / 25卷 / 19期

关键词：

D O I：

10.1021/ma00045a037

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 technique for measuring mutual diffusion coofficients of polymers in the melt using infrared attenuated total reflectance (ATR) spectroscopy is described. This method measures the dissolution of a polymeric diffusant into a matrix of another polymer and is applicable to any diffusion couple with infrared-distinguishable bands. In situ measurements of the diffusion of various molecular weight polystyrenes and the temperature dependence of the diffusion of poly (methyl methacrylate) are presented.

引用

页码：5069 / 5073

页数：5

共 13 条

[1]

BRANDRUP J, 1989, POLYM HDB

[2]

FERNANDEZ ML, 1990, POLYM COMMUN, V31, P124

[3] LIMITS OF REPTATION IN POLYMER MELTS [J].