CROSS-LINKED POLY(ETHYLENE OXIDE) MODIFIED WITH TETRAALKYLAMMONIUM SALTS AS PHASE-TRANSFER CATALYST

被引:16
作者
TSANOV, T [1 ]
VASSILEV, K [1 ]
STAMENOVA, R [1 ]
TSVETANOV, C [1 ]
机构
[1] BULGARIAN ACAD SCI,INST POLYMER,BU-1113 SOFIA,BULGARIA
关键词
CROSS-LINKED POLY(ETHYLENE OXIDE); TETRAALKYLAMMONIUM SALTS; PHASE TRANSFER CATALYSTS;
D O I
10.1002/pola.1995.080331508
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Radiation crosslinked poly(ethylene oxide)s (PEG) modified with two tetraalkylammonium salts: allyldimethyldodecylammonium bromide and ethylmethacrylate dimethyldodecylammonium bromide were prepared. They have been characterized by elemental analysis, IR, H-1-NMR spectra, and DSC measurements. Their activity as phase transfer catalysts (PTC) in the model displacement reaction of 1-bromooctane with aqueous sodium cyanide were studied. The reaction kinetics were followed under pseudo-first-order conditions. Small amounts of onium salt inserted into the PEO network gave rise to a five time increase in the rate constant. The recovered catalysts could be re-used without loss of activity. (C) 1995 John Wiley & Sons, Inc.
引用
收藏
页码:2623 / 2628
页数:6
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