Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (5): 504-509.DOI: 10.11944/j.issn.1000-0518.2015.05.140330

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Preparation and Characterization of Poly(aryl ether ketone) Containing Bisphenol A and Benzimidazolone

WANG Zhipenga, b, WANG Feifeia, b, WANG Honghuaa, ZHOU Guangyuana, *   

  1. aKey Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
    bUniversity of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-09-24 Revised:2015-01-06 Accepted:2015-01-28 Published:2015-05-05 Online:2015-05-05
  • Contact: ZHOU Guangyuan
  • Supported by:
     

Abstract:

A series of random copolymers of poly(aryl ether ketone) was prepared by copolymerization of bisphenol A, 4, 4'-difluorobenzophenone and benzimidazolone(BPA-DFK-HBI). High relative molecular mass copolymers were prepared via the nucleophilic polycondensation and C—N coupling polycondensation. The structure of the copolymers was characterized by FTIR and 1H NMR. The heat resistant properties of the copolymers were studied by DSC and TGA. As the feed ratio of benzimidazolone and bisphenol A increases, the solvent resistance properties of copolymers are improved in polar solvents such as DMF and THF. The thermal stability is enhanced, and the Tg is significantly increased to as high as 236 ℃. It is difficult to obtain high relative molecular mass polymer when the molar ratio of benzimidazolone and bisphenol A is higher than 7:3 because precipitation occurs in the early stage of the reaction due to the poor solubility of copolymers.

 

Key words: poly(aryl ether ketone), benzimidazolone, bisphenol A, copolymer, special engineering plastics

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