Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties

The hydrogenation of styrene-isoprene-styrene block copolymer(SIS) was catalyzed by nickel-based catalyst, and the mechanism of catalytic reaction was studied. The conditions of catalyst preparation and hydrogenation were determined, and the structure and performance of the product were investigated...

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Autor principal:	LIANG Ai-min
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of China Synthetic Rubber Industry 2021
Materias:	styrene-isoprene-styrene block copolymer hydrogenation catalyst hydrogenation degree mechanical property aging resistance Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248
Acceso en línea:	https://doaj.org/article/943918fb5d3246d79ef2b664bac75d4b
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spelling	oai:doaj.org-article:943918fb5d3246d79ef2b664bac75d4b2021-11-19T06:29:00ZHydrogenation of styrene-isoprene-styrene block copolymer and its product properties10.19908/j.cnki.ISSN1000-1255.2021.05.03421000-1255https://doaj.org/article/943918fb5d3246d79ef2b664bac75d4b2021-09-01T00:00:00Zhttp://hcxjgy.paperopen.com/oa/darticle.aspx?type=view&id=202105002https://doaj.org/toc/1000-1255The hydrogenation of styrene-isoprene-styrene block copolymer(SIS) was catalyzed by nickel-based catalyst, and the mechanism of catalytic reaction was studied. The conditions of catalyst preparation and hydrogenation were determined, and the structure and performance of the product were investigated. The results showed that the activity and selectivity in hydrogenation was high with nickel isooctanoate and triisobutyl aluminum as SIS hydrogenation catalysts. The conditions of the reactions were optimized with the mole ratio of aluminum to nickel was 3.0~4.0 and the mass concentration of nickel and aluminum catalyst was 25~40 g/L at aging temperature 50-70 ℃ for more than 30 min. The hydrogenation degree of polyisoprene segment in SIS was greater than 98% and the benzene ring was less than 5% with the catalyst amount 3×10-4~7×10-4 g/g for 1~2 h. The mechanical properties and aging resistance of SIS were significantly improved after hydrogenation.LIANG Ai-minEditorial Office of China Synthetic Rubber Industryarticlestyrene-isoprene-styrene block copolymerhydrogenation catalysthydrogenation degreemechanical propertyaging resistanceOrganic chemistryQD241-441Chemical engineeringTP155-156Chemicals: Manufacture, use, etc.TP200-248ZHHecheng xiangjiao gongye, Vol 44, Iss 5, Pp 342-346 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	styrene-isoprene-styrene block copolymer hydrogenation catalyst hydrogenation degree mechanical property aging resistance Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248
spellingShingle	styrene-isoprene-styrene block copolymer hydrogenation catalyst hydrogenation degree mechanical property aging resistance Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248 LIANG Ai-min Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
description	The hydrogenation of styrene-isoprene-styrene block copolymer(SIS) was catalyzed by nickel-based catalyst, and the mechanism of catalytic reaction was studied. The conditions of catalyst preparation and hydrogenation were determined, and the structure and performance of the product were investigated. The results showed that the activity and selectivity in hydrogenation was high with nickel isooctanoate and triisobutyl aluminum as SIS hydrogenation catalysts. The conditions of the reactions were optimized with the mole ratio of aluminum to nickel was 3.0~4.0 and the mass concentration of nickel and aluminum catalyst was 25~40 g/L at aging temperature 50-70 ℃ for more than 30 min. The hydrogenation degree of polyisoprene segment in SIS was greater than 98% and the benzene ring was less than 5% with the catalyst amount 3×10-4~7×10-4 g/g for 1~2 h. The mechanical properties and aging resistance of SIS were significantly improved after hydrogenation.
format	article
author	LIANG Ai-min
author_facet	LIANG Ai-min
author_sort	LIANG Ai-min
title	Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
title_short	Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
title_full	Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
title_fullStr	Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
title_full_unstemmed	Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
title_sort	hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
publisher	Editorial Office of China Synthetic Rubber Industry
publishDate	2021
url	https://doaj.org/article/943918fb5d3246d79ef2b664bac75d4b
work_keys_str_mv	AT liangaimin hydrogenationofstyreneisoprenestyreneblockcopolymeranditsproductproperties
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Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties

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