SOLUTE AND PENETRANT DIFFUSION IN SWELLABLE POLYMERS .11. THE DYNAMIC SWELLING BEHAVIOR OF HYDROPHILIC COPOLYMERS CONTAINING MULTIETHYLENE GLYCOL DIMETHACRYLATES

被引：40

作者：

SHIEH, LY ^{[1
]}

PEPPAS, NA ^{[1
]}

机构：

[1] PURDUE UNIV,SCH CHEM ENGN,W LAFAYETTE,IN 47907

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 06期

关键词：

D O I：

10.1002/app.1991.070420611

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymers of 2-hydroxyethyl methacrylate with a number of multiethylene glycol dimethacrylates were prepared by bulk copolymerization in the presence of AIBN as an initiator. The content of the dimethacrylate varied between 30 and 50 mol %. Additional copolymers were prepared by solution polymerization in the presence of water or ethanol. All samples were swollen in water up to thermodynamic equilibrium, and their dynamic swelling behavior was studied as a function of time. It was concluded that the mechanism of water transport in these moderately and highly crosslinked polymers was a coupled relaxation and diffusion and that the relaxational contribution to the overall transport depended on the chain length of the multiethylene glycol dimethacrylate.

引用

页码：1579 / 1587

页数：9

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