Studies of the thermal degradation of polysulfones by filament-pulse pyrolysis gas chromatography

被引:26
作者
Almen, P
Ericsson, I
机构
[1] Department of Analytical Chemistry, University of Lund, S-221 00 Lund
关键词
D O I
10.1016/0141-3910(95)00169-7
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 degradation of poly(1,4-phenylene ether-sulfone) (PES), Mw 47 000, and of a polysulfone resin (PSR) Mw 75 000, was studied by flash-pyrolysis, with a temperature rise time (TRT) of 8 ms. Pyrolysis products were monitored by a pyrolysis-gas chromatography flame ionisation detector/flame photometric detector (Py-GC-FID/FPD) and pyrolysis-gas chromatography mass spectrometry (Py-GC/MS). Special attention was given to the formation of sulphur-containing pyrolysis products. The kinetics of SO, formation were studied by sequential pyrolysis of PES and PSR. It was possible to differentiate between the rates of formation of SO2 from PES and PSR. The rate of formation of SO2 was somewhat higher for PES than for PSR. The activation energies were 270 and 280 kJ/mol, respectively, and the frequency factors were 10(14) and 10(15) s(-1).
引用
收藏
页码:223 / 228
页数:6
相关论文
共 17 条
[1]   STUDIES OF THE YIELD OF SULFUR FROM A COAL SAMPLE BY PYROLYSIS-GAS CHROMATOGRAPHY [J].
ALMEN, P ;
ERICSSON, I ;
SELSBO, P .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1993, 25 :243-254
[2]   QUANTIFICATION OF SODIUM DODECYL-SULFATE IN A 2-PHASE SYSTEM USING FILAMENT-PULSE-PYROLYSIS GAS-CHROMATOGRAPHY [J].
ALMEN, P ;
ERICSSON, I .
LANGMUIR, 1995, 11 (01) :108-110
[3]   STUDY OF THERMAL-DECOMPOSITION REACTIONS IN COALS BY PYROLYSIS-GAS CHROMATOGRAPHY-MASS SPECTROMETRY [J].
BLAZSO, M ;
JAKAB, E .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1985, 8 (1-4) :189-194
[4]   INVESTIGATION OF ORGANIC SULFUR-CONTAINING STRUCTURES IN COAL BY FLASH PYROLYSIS EXPERIMENTS [J].
CALKINS, WH .
ENERGY & FUELS, 1987, 1 (01) :59-64
[5]   COMPARISON OF PYROLYTIC AND X-RAY SPECTROSCOPIC METHODS FOR DETERMINING ORGANIC SULFUR SPECIES IN COAL [J].
CALKINS, WH ;
TORRESORDONEZ, RJ ;
JUNG, BJ ;
GORBATY, ML ;
GEORGE, GN ;
KELEMEN, SR .
ENERGY & FUELS, 1992, 6 (04) :411-413
[6]   AN APPROACH TO SOLID-STATE KINETICS [J].
CARLSEN, L ;
FELDTHUS, A ;
BO, P .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1989, 15 :373-381
[7]   SOLID-STATE PYROLYSES .2. SOLID-STATE KINETICS STUDIED BY PYROLYSIS-GAS CHROMATOGRAPHY [J].
CARLSEN, L ;
FELDTHUS, A ;
BO, P .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1991, 19 :15-27
[8]   PYROLYSIS NOMENCLATURE [J].
ERICSSON, I ;
LATTIMER, RP .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1989, 14 (04) :219-221
[9]   SEQUENTIAL PYROLYSIS-GAS CHROMATOGRAPHIC STUDY OF DECOMPOSITION KINETICS OF CIS-1,4-POLYBUTADIENE [J].
ERICSSON, I .
JOURNAL OF CHROMATOGRAPHIC SCIENCE, 1978, 16 (08) :340-344
[10]  
ERICSSON I, UNPUB