UV irradiation-induced crosslinking of solid poly(ethylene oxide) modified with tetraalkyl ammonium salt

被引：42

作者：

Doytcheva, M

Stamenova, R ^{[1
]}

Zvetkov, V

Tsvetanov, CB

机构：

[1] Bulgarian Acad Sci, Inst Polymers, BU-1113 Sofia, Bulgaria

[2] Bulgarian Acad Sci, Cent Lab Phys Chem Mech, BU-1113 Sofia, Bulgaria

来源：

POLYMER | 1998年 / 39卷 / 26期

关键词：

crosslinked poly(ethylene oxide); quaternary ammonium salts immobilization; photocrosslinking;

D O I：

10.1016/S0032-3861(98)00133-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Crosslinked poly(ethylene oxide) (PEO) modified with a quaternary tetraalkyl ammonium salt, ethyl methacrylate dimethyldodecylammonium bromide, was prepared by exposure of the solid blend to ultraviolet radiation from a high-pressure 150 W mercury lamp. The photochemical crosslinking of the blends proceeded in the presence of benzophenone as a hydrogen-abstracting agent. Gel fraction yield exceeded 85%, equilibrium swelling in water varied from 3.0 to 5.0, and the equilibrium swelling in chloroform from 6.5 to 12.5. The networks obtained have been characterized by elemental analysis, i.r., H-1 n.m.r., and d.s.c. measurements and their microstructure, water absorption and equilibrium swelling have been discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：6715 / 6721

页数：7

共 16 条

[11]

LIDE DR, 1995, HDB CHEM PHYSICS

[12] CROSS-LINKING POLY(ETHYLENE OXIDE) AND POLY[OXYMETHYLENE-OLIGO(OXYETHYLENE)] WITH ULTRAVIOLET-RADIATION [J].