AGING AND DEGRADATION OF POLYOLEFINS .2. GAMMA-INITIATED OXIDATIONS OF ATACTIC POLYPROPYLENE

被引：108

作者：

DECKER, C ^{[1
]}

MAYO, FR ^{[1
]}

机构：

[1] STANFORD RES INST,MENLO PK,CA 94025

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1973年 / 11卷 / 11期

关键词：

D O I：

10.1002/pol.1973.170111109

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Oxidations of bulk atactic PP have been carried out at 22 and 45 C, and the dependence of rate of formation of each product on rate of initiation has been determined. The principal product is PP hydroperoxide, formed in a half-order reaction. One termination product is polymeric dialkyl peroxide, formed in a first-order reaction. Other termination and propagation products, alcohols and carbonyl compounds, are formed in reactions that are mostly first-order in initiation. Both the propagation and termination constants for PP oxidation are much faster in solution, but the changes compensate so that k//p/(2k//t)**1**/**2 is about the same in solution as in bulk.

引用

页码：2847 / 2877

页数：31

共 20 条

[1]

BAKH NA, 1959, RADIAT RES S, V1, P190

[2]

BENNETT JE, 1970, T FARADAY SOC, V66, P386

[3] EFFECT OF HIGH-ENERGY RADIATION ON POLYPROPYLENE [J].