Evolution of the structures and sorption properties of dehydrochlorinated chloropolymers during their thermal conversions |
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Authors: | Yu. G. Kryazhev V. S. Solodovnichenko N. V. Antonicheva T. I. Gulyaeva V. A. Drozdov V. A. Likholobov |
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Affiliation: | (1) Omsk Scientific Center, Siberian Division, Russian Academy of Sciences, Omsk, Russia;(2) Institute of Problems of Hydrocarbon Processing, Siberian Division, Russian Academy of Sciences, ul. Neftezavodskaya 54, Omsk, 644040, Russia |
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Abstract: | A microporous carbon material can be obtained by dehydrochlorination of the polymeric formulation poly(vinyl chloride)-poly(vinylidene chloride) in the presence of KOH followed by thermal treatment at a relatively low temperature (350°C in a nitrogen-oxygen gas mixture (10: 1 w/w)). This is because the chemical dehydrochlorination gives highly reactive chloro-containing polyconjugate systems. The conversion of chloropolyene systems into carbon structures is confirmed by Raman spectroscopy and TGA with MS analysis of volatile pyrolysis products. The resulting carbon material has a system of pores including ultramicropores 6.5 ± 0.5 Å), micropores (16 ± 1 Å), and mesopores (average pore size 150 ± 7 Å). |
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Keywords: | KeywordHeading" >PACS 68.43-h |
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