Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (6): 623-630.DOI: 10.11944/j.issn.1000-0518.2017.06.160381

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Preparation and Characterization of Poly(aryl ether sulfone) Copolymers Containing Imidazolyl Group

YANG Yua,WANG Zhipengbc,WANG Honghuabc,ZHOU Guangyuanb*(),ZHU Xiaofeia*()   

  1. aInstitute of Chemistry and Life Science,Changchun University of Technology,Changchun 130012,China
    bKey Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry, Chinese Academy of Sciences,Changchun 130022,China
    cChangzhou Institute of Energy Storage Meterials & Devices,Changzhou,Jiangsu 213002,China;
  • Received:2016-09-21 Accepted:2016-12-06 Published:2017-05-31 Online:2017-05-31
  • Contact: ZHOU Guangyuan,ZHU Xiaofei
  • Supported by:
    Supported by National High Technology Research and Development Projects(No.2015AA033901)

Abstract:

A series of different content of benzimidazolone and 5,6-dimethyl-2-benzimidazolone poly(aryl ether sulfone) copolymers with side groups were synthesized by copolymerization on the basis of poly(aryl ether sulfone) with cardo group(PES-C). The structures and properties of the copolymers were characterized by nuclear magnetic resonance spectroscopy(NMR), Fourier transform infrared spectrometer(FTIR), thermal gravimetric analyzer(TGA) and so on. The resulsts show that poly(aryl ether sulfone) copolymers are amorphous. The copolymers exhibit good heat resistance, and present a single glass transition temperature(Tg>271 ℃), when the mole fraction of benzimidazolone and 5,6-dimethyl-2-benzimidazolone increases, the copolymer glass transition temperature rises, ranging from 270 ℃ to 318 ℃ and 314 ℃, respectively. At the same time, the copolymers have good thermal stability. These copolymers have good solubility in N,N-dimethyl formamide(DMF), N,N-dimethylacetamide(DMAc), dimethyl sulfoxide(DMSO), N-methyl pyrrolidone(NMP) which are the commonly polar aprotic solvents, and trichloromethane(CHCl3). Based on good solution processability and film-forming properties, the toughness thin film can be prepared by solution preparation.

Key words: poly(aryl ether sulfone), benzimidazolone, phenolphthalein, copolymer, amorphous form