AUTOXIDATION OF 2-MERCAPTOETHANOL CATALYZED BY COBALT(II) PHTHALOCYANINETETRASULFONATE ON COLLOIDAL PARTICLES

被引：16

作者：

BABU, SH ^{[1
]}

FORD, WT ^{[1
]}

机构：

[1] OKLAHOMA STATE UNIV,DEPT CHEM,STILLWATER,OK 74078

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1992年 / 30卷 / 09期

关键词：

AUTOXIDATION; THIOL; COLLOID; POLYELECTROLYTE; CATALYSIS;

D O I：

10.1002/pola.1992.080300914

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cobalt(II) phthalocyaninetetrasulfonate (CoPcTS) is a highly active catalyst in aqueous media for the autoxidation of thiols to disulfides, and cationic polymers further enhance the activity. In this work we tested a variety of cationic polymer supports for the CoPcTS-catalyzed autoxidation of 2-mercaptoethanol in aqueous dispersions at 25-degrees-C. The order of activities is cationic polyelectrolytes much greater than cationic polymer colloids > cationic colloidal silica almost-equal-to aqueous solution > ion exchange resins. Spectroscopic studies indicate that the high activity of the polyelectrolytes correlates with their ability to aggregate the CoPcTS.

引用

页码：1917 / 1923

页数：7

共 39 条

[1] SILICA-BOUND SULFONIC-ACID CATALYSTS [J].