Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (12): 2496.

• Articles • Previous Articles     Next Articles

Synthesis and Properties of Styrene-N-phenylmaleimide-maleic Anhydride Tercopolymer

HU Yi-Min, DONG Jian-Ting, FAN Zhong-Yong*, SUN Meng   

  1. Department of Materials Science, Fudan University, Shanghai 200433, China
  • Received:2009-03-24 Online:2009-12-10 Published:2009-12-10
  • Contact: FAN Zhong-Yong. E-mail: zyfan@fudan.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20474013)和上海市重点学科建设项目(批准号: B113)资助.

Abstract:

Styrene-N-phenylmaleimide-maleic anhydride copolymers were synthesized by means of one-shot process with ditertbutyl peroxyphthalate as an initiator. The composition of N-phenylma leimide in copolymers is modified from 48% to 63% in the mass fraction by various monomer molar ratio. The structures and characteristic of the terpolymers were charactered via FTIR, 1H NMR, 13C NMR, GPC, DSC and TGA, respectively. The mass fraction of the N-phenylmaleimide in terpolymers calculated from FOX equation was in agreement with the 1H NMR results. DSC results show that the glass transition temperature of terpolymers increases from 202 ℃ to 215 ℃ with various compositions of chain segments. TGA results prove that the thermal decomposition temperature of samples at 5% mass loss with the N-phenylmaleimide in terpolymers more than 48% was higher than 363 ℃. Therefore, the Styrene-N-phenylmaleimide-maleic anhydride tercopolymer applies as an excellent heat-resistant agent to polymer materials.

Key words: N-Phenylmaleimide; Styrene; Maleic anhydride; Solution polymerization; Terpolymer

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