Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (3): 555.

• Preface • Previous Articles     Next Articles

Synthesis and Properties of Poly(ether imide)s Containing 3,5-Dimethyl Phthalazinone Moities

WANG Jin-Yan, XIAO Shu-De, JIAN Xi-Gao, ZHANG Shou-Hai   

  1. Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China
  • Received:2001-09-29 Online:2003-03-24 Published:2003-03-24

Abstract: A series of novel poly(ether imide)s based on the dianhydride containing 3,5-dimethyl phthalazinone was synthesized and characterized. Poly(ether imide)s with intrinsic viscosities of 0.55-1.88 dL/g[in N-methyl-2-pyrrolidinone (NMP) at 30 ℃] were obtained by one-step solution polymerization in m-cresol. These poly(ether imide)s were readily soluble in some common organic solvents such as N,N-dimethylacetamide and NMP. The poly(ether imide)s derived from 4,4-oxydianiline and 4,4-methylenedianiline were also well soluble in 1,1,2,2-tetrachloroethane and chloroform. Glass transition temperatures determined by differential scanning calorimeter were in the range of 583-628 K. Degradation temperatures for 5% weight loss occurred all above 439 ℃ in nitrogen.

Key words: Polyimide, Phthalazinone, Synthesis, Solubility

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