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Monomer reactivity ratio and thermal performance of α-methyl styrene and glycidyl methacrylate copolymers

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Abstract

Synthesis and characterization of the copolymers (PAG) of α-methyl styrene (AMS) and glycidyl methacrylate (GMA) are presented. The copolymers of PAG were characterized by gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H-NMR) and thermogravimetery (TG). Based on the copolymer compositions determined by 1H-NMR, the reactivity ratios of AMS and GMA were found to be 0.105 ± 0.012 and 0.883 ± 0.046 respectively by Kelen-Tüdös method. TG revealed that thermal stability of the copolymers decreased with increasing the AMS content in the copolymers, which indicated that the degradation was mainly caused by the chain scission of AMS-containing structures. Under heating, the copolymers depolymerize at their weak bonds and form chain radicals, which could further initiate other chemical reactions.

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Authors and Affiliations

  1. Taiyuan Institute of Technology, Taiyuan, 030008, China

    Shu-jun Liang  (梁淑君)

  2. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

    Shu-jun Liang  (梁淑君), Jian-ping Deng & Wan-tai Yang

  3. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

    Shu-jun Liang  (梁淑君), Jian-ping Deng & Wan-tai Yang

Authors
  1. Shu-jun Liang  (梁淑君)
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  2. Jian-ping Deng
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  3. Wan-tai Yang
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Correspondence to Shu-jun Liang  (梁淑君).

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Liang, Sj., Deng, Jp. & Yang, Wt. Monomer reactivity ratio and thermal performance of α-methyl styrene and glycidyl methacrylate copolymers. Chin J Polym Sci 28, 323–330 (2010). https://doi.org/10.1007/s10118-010-9009-x

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  • DOI: https://doi.org/10.1007/s10118-010-9009-x

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