HETEROGENEOUS CATALYTIC-HYDROGENATION OF POLY(VINYLETHYLENE)

被引：68

作者：

ROSEDALE, JH ^{[1
]}

BATES, FS ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1988年 / 110卷 / 11期

关键词：

CALCIUM COMPOUNDS - CATALYSTS - Palladium - PLASTICS - Adsorption;

D O I：

10.1021/ja00219a032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hydrogenation of poly(vinylethylene) in cyclohexane (1% w/v) at 70 degree C with use of a calcium carbonate supported palladium catalyst has been investigated. Evaluation of partially hydrogenated polymer by size-exclusion chromatography and **1H NMR spectroscopy reveals that this reaction initially proceeds by the concerted hydrogenation of approximately 85% of the unsaturated repeat units in individual polymer molecules during a single adsorption step from solution. This finding is qualitatively explained on the basis of the unique adsorption characteristics of polymers, in conjunction with the estimated heats of adsorption for unsaturated and saturated hydrocarbons on group VIII metal surfaces.

引用

页码：3542 / 3545

页数：4

共 17 条

[1]

[Anonymous], 1975, POLYM HDB

[2]

BATES FS, IN PRESS MACROMOLECU

[3]

BOND CG, 1962, CATALYSIS METALS

[4] MODEL HYDROCARBON POLYMERS - RHEOLOGICAL PROPERTIES OF LINEAR POLYISOPRENES AND HYDROGENATED POLYISOPRENES [J].