✦ LIBER ✦

Effect of compatibilization on the properties of HIPS/PA1010 blends

✍ Scribed by Guangxin Chen; Jingjiang Liu

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 250 KB
Volume: 76
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(20000509)76:6<799::aid-app5>3.0.co;2-s

No coin nor oath required. For personal study only.

✦ Synopsis

Blends consisting of high-impact polystyrene (HIPS) as the matrix and polyamide 1010 (PA1010) as the dispersed phase were prepared by mixing. The grafting copolymers of HIPS and maleic anhydride (MA), the compatibilizer precursors of the blends, were synthesized. The contents of the MA in the grafting copolymers are 4.7 wt % and 1.6 wt %, and were assigned as HAM and LMA, respectively. Different blend morphologies were observed by scanning electron microscopy (SEM); the domain size of the PA1010 dispersed phase in the HIPS matrix of compatibilized blends decreased comparing with that of uncompatibilized blends. For the blend with 25 wt % HIPSg-MA component, the T c of PA1010 shifts towards lower temperature, from 178 to 83°C. It is found that HIPS-g-MA used as the third component has profound effect on the mechanical properties of the resulting blends. This behavior has been attributed to the chemical reaction taking place in situ during the mixing between the two components of PA1010 and HIPS-g-MA.

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