RADIATION DEGRADATION OF POLY(BUTENE-1 SULFONE) AND POLY(1,4-PHENYLENE ETHER SULFONE) IN THE SOFT-X-RAY REGION

被引：7

作者：

YATES, BW ^{[1
]}

SHINOZAKI, DM ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT MAT ENGN,LONDON N6A 5B7,ONTARIO,CANADA

来源：

JOURNAL OF MATERIALS RESEARCH | 1992年 / 7卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1557/JMR.1992.0520

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mass spectral fragment ion yields and total electron yields have been measured for the polymers poly(butene-1 sulfone) [PBS] and poly(1,4-phenylene ether sulfone) [PPES] around the sulfur 2p (L(II)) edge, using synchrotron radiation from the Canadian Synchrotron Radiation Facility [CSRF]. Ionization of the sulfur 2p orbitals of PBS produced a sharp decrease in the neutral yields of SO2 and 1-butene. Decreases in the SO2 and 1-butene neutral yield shapes "mirrored" the structure present in the total electron yield. Ionization of the sulfur 2p orbital does not appear to produce any enhanced cleavage of the C-S bonds in the polymer backbone. A G(olefin)/G(SO2) ratio of 0.96 +/- 0.15 was determined at 21-degrees-C from mass spectrometry, consistent with a depropagation reaction mechanism. PPES showed a much different behavior than PBS about the sulfur 2p edge, with no detectable yield of SO2.

引用

页码：520 / 524

页数：5