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Evolved gas analysis of pyrolysis products from some rubbers by mass spectrometry

✍ Scribed by Mustafa Erdoǧan; Talat Yalçin; Toeman Tinçer; Şefik Süzer

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
302 KB
Volume
27
Category
Article
ISSN
0014-3057

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✦ Synopsis

A mass spectrometric investigation has been performed on the gases evolved during the pyrolysis of natural and some synthetic rubbers over the temperature range 30-4500 It was found that variations in ion ratio with temperature reveal interesting structural information. The ion ratiotemperature profiles of the ions representative of styrene and butadiene in block copolymers are very similar to the corresponding ratios for the homopolymers but differ appreciably from those for the statistical copolymers. These ion ratio-temperature plots display stronger structural features if the polymer main chain contains pendant groups.

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