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Surface segregation during injection molding of polycarbonate/poly(methyl methacrylate) blend

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Abstract

We investigated the distribution of the constituent polymers of an injection-molded product comprising a miscible blend of polycarbonate (PC) and low-molecular-weight poly(methyl methacrylate) (PMMA). We found that PMMA became localized at the surface without affecting the transparency of the product. As a result, the surface hardness was effectively enhanced by a small amount of PMMA. This technique can be used to produce an ideal plastic glass that has high transparency, mechanical toughness, and high surface hardness.

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Acknowledgements

A part of this work was supported by JSPS Grant-in-Aid for Scientific Research (B) Grant Number 16H04201.

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Authors and Affiliations

  1. School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan

    Takumi Sako, Asae Ito & Masayuki Yamaguchi

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  1. Takumi Sako
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  2. Asae Ito
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  3. Masayuki Yamaguchi
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Correspondence to Masayuki Yamaguchi.

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Sako, T., Ito, A. & Yamaguchi, M. Surface segregation during injection molding of polycarbonate/poly(methyl methacrylate) blend. J Polym Res 24, 89 (2017). https://doi.org/10.1007/s10965-017-1251-2

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  • DOI: https://doi.org/10.1007/s10965-017-1251-2

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