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Reactive Compatibilization in Brominated Poly(isobutylene-co-p-methylstyrene) and Polyamide Blends

✍ Scribed by Andy H. Tsou; Basil D. Favis; Yuichi Hara; Prashant A. Bhadane; Yoshiaki Kirino

Book ID: 102939337
Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 985 KB
Volume: 210
Category: Article
ISSN: 1022-1352
DOI: 10.1002/macp.200800465

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✦ Synopsis

Abstract

The blending of BIMSM and PA results in interfacial reactions between pendant benzylic bromines of BIMSM and terminal amines and backbone amides of PA as determined by FT‐IR. The emulsification study at 40 (IMSM/BIMSM)/60 PA composition demonstrates a rapid initial drop in elastomer phase size at lower BIMSM concentrations due to inhibited coalescence effects. However, at higher BIMSM concentrations, unlike classical compatibilized systems, a plateau‐value phase size is never attained. Instead, a linear dependence of the elastomer particle size on BIMSM concentration is found. Particle sizes as small as 80–100 nm are obtained. A 3D PA transcrystalline network bridging BIMSM dispersions to PA matrix is obtained after dynamic vulcanization.

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