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Wide-angle X-ray diffraction investigation on crystallization behavior of PA6/PS/SEBS-g-MA blends

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Abstract

Blends of polystyrene/polyamide 6 (PS/PA6) compatibilized by styrene-ethylene/butylene-styrene (SEBS) elastomer grafted with maleic anhydride were prepared by melt blending. Wide-angle X-ray diffraction (WAXD) scans indicated a skin–core structure formed in the specimens during the injection-molding process. The results showed that the specimens tended to form the α-crystalline form in the core region, but the γ-crystalline form in the skin region. The influences of PS and SEBS-g-MA on the crystallization of PA6 were different in the core region and skin region. In the core region, PS made the PA6 tend to be in the γ-crystalline form, but the influence of PS was contrary in the skin region. SEBS-g-MA had both enhancement and toughening effects on the blends. The mechanical properties of the blends were determined by the combined action of the two aforementioned factors.

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Authors and Affiliations

  1. Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, People’s Republic of China

    Tiantian Guo, Xuejia Ding, Haijun Han, Lijuan Zhang, Yu Zhang & Kebin Zhou

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  1. Tiantian Guo
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  2. Xuejia Ding
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  3. Haijun Han
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  4. Lijuan Zhang
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  5. Yu Zhang
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  6. Kebin Zhou
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Correspondence to Xuejia Ding.

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Guo, T., Ding, X., Han, H. et al. Wide-angle X-ray diffraction investigation on crystallization behavior of PA6/PS/SEBS-g-MA blends. J Polym Res 19, 9813 (2012). https://doi.org/10.1007/s10965-011-9813-1

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  • DOI: https://doi.org/10.1007/s10965-011-9813-1

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