Abstract
Three sulphonylated polystyrenes, obtained by sulphonylating polystyrene with the corresponding sulphonyl chlorides, have been characterized by IR and NMR spectroscopy. Elemental analysis shows 76.6, 96.5 and 73.9 mol% of sulphone groups in poly 4-(benzene sulphonyl)styrene, poly 4-(4-toluene sulphonyl)styrene and poly 4-(2-naphthalene sulphonyl)styrene, respectively. Their glass transition temperatures, measured by DSC, are much higher than that of PS. Thermogravimetric studies show that the sulphonylated PSs, with single stage degradation, are similar to PS, but their thermal stabilities are somewhat higher than that of PS. Detailed degradation studies have been carried out only on poly 4-(4-toluene sulphonyl)styrene. Gas chromatography-mass spectrometry (GC-MS) has shown that 4-(4-toluene sulphonyl)styrene is present among the volatile products as 36.3% of the total volatiles. From gas chromatographic studies it has been found that styrene, toluene and SO 2 are minor products of the degradation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
