FURTHER-STUDIES ON THE THERMAL-DECOMPOSITION PROCESSES IN POLYCARBONATES

被引：43

作者：

MONTAUDO, G ^{[1
]}

PUGLISI, C ^{[1
]}

RAPISARDI, R ^{[1
]}

SAMPERI, F ^{[1
]}

机构：

[1] CNR,IST CHIM & TECNOL MAT POLIMERICI,I-95125 CATANIA,ITALY

来源：

POLYMER DEGRADATION AND STABILITY | 1991年 / 31卷 / 02期

关键词：

D O I：

10.1016/0141-3910(91)90078-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal decomposition mechanisms of poly(trimethylene carbonate), poly(neopentylene carbonate), poly(2-phenyltrimethylene carbonate) and poly(p-xylylene carbonate) have been investigated by EI/CI direct pyrolysis mass spectrometry and by desorption chemical ionization (DCI) mass spectrometry. The results indicate that all four polycarbonates decompose by an intramolecular exchange, an ionic process that produces cyclic carbonates as pyrolysis products. Other thermal processes (Reactions 1c-1i, Scheme 1) also occur during the pyrolysis, and are all explained on the basis of well-established ionic reactions (Scheme 1).

引用

页码：229 / 246

页数：18

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