A new method of styrene-butadiene rubber curing using in situ generated Lewis acids

P. Dmowska-Jasek; W. M. Rzymski; E. Koścista; K. Bociong

doi:10.14314/polimery.2015.742

Published : 2015-12-30

Vol. 60 No. 11-12 (2015)

A new method of styrene-butadiene rubber curing using in situ generated Lewis acids

P. Dmowska-Jasek W. M. Rzymski E. Koścista K. Bociong

DOI: https://doi.org/10.14314/polimery.2015.742

Abstract

Heating of blends composed of styrene-butadiene rubber (SBR) and chlorosulphonated polyethylene (CSM) at T = 453 K in the presence of fine powdered Zn leads to curing of the elastomers involving interelastomer reactions of the blend components. Analysis of IR spectra leads to the conclusion that the curing in the studied blends is a result of the interelastomer Friedel-Crafts alkylation of the SBR phenyl rings with the elastomeric polyhalide. This reaction is catalyzed with a Lewis acid (ZnCl2) generated in situ by the reaction of CSM with the Zn powder. This new, unconventional method can be used for the curing of the SBR/CSM blends containing selected fillers.

Keywords

interelastomer reactions ; styrene-butadiene rubber ; chlorosulphonated polyethylene ; elastomer blends reakcje interelastomerowe ; kauczuk butadienowo-styrenowy ; chlorosulfonowany polietylen ; mieszaniny elastomerowe

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Dmowska-Jasek, P., Rzymski, W. M., Koścista, E., & Bociong, K. (2015). A new method of styrene-butadiene rubber curing using in situ generated Lewis acids. Polimery, 60(11-12), 742–746. https://doi.org/10.14314/polimery.2015.742

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P. Dmowska-Jasek paulina_dmowska@wp.pl

Affiliation
Technical University of Lodz, Insitute of Polymer and Dye Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland

W. M. Rzymski

Affiliation
Technical University of Lodz, Insitute of Polymer and Dye Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland

E. Koścista

Affiliation
Technical University of Lodz, Insitute of Polymer and Dye Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland

K. Bociong

Affiliation
Medical University of Lodz, University Laboratory of Material Research, Pomorska 25, 92-213 Lodz, Poland