Article
  • Studies on the Synthesis and Properties of Polyimides Containing Ester Linkages
  • Ahn BH, Kim HI
  • Ester Linkage를 포함하는 Polyimides의 합성 및 성질에 관한 연구
  • 안병현, 김형일
Abstract
Four different kinds of aminophenyl aminobenzoates were prepared by the hydrogenation of nitrophenyl nitrobenzoates which were synthesized from nitrobenzoyl chlorides and nitrophenols. The reaction of aminophenyl aminobenzoates with 3,3',4,4'-be nzophenonetetracarboxylic dianhydride gave poly(amic acid)s. Their inherent viscosities ranged from 0.30∼0.48 dL/g. Poly(amic acid)s were converted to polyimides containing ester linkage by thermal and chemical imidization. Glass transition temperatures of the polyimides were between 260 and 174℃. The 5% weight loss temperatures by TGA thermogram were recorded in the range of 511∼442℃ in nitrogen and 542∼438℃ in air atmosphere, respectively.

Nitrobenzoyl chloride와 nitrophenol을 반응시켜 nitrophenyl nitrobenzoate들을 합성한 후 이들을 수소첨가 반응하여 4 종류의 aminophenyl aminobenzoate들을 얻었다. Aminophenyl aminobenzoate들을 3,3',4,4'-benzophenonetetracarboxylic dianhydride와 반응시켜 poly(amic acid)들을 얻었는데 inherent viscosity는 0.30-0.48 dL/g 이었다. Poly(amic acid)들은 thermal imidization과 chemical imidization에 의해 ester linkage를 가지는 polyimide로 전환시켰다. Polyimide들의 유리전이온도는 260∼174℃이었다. TGA에서의 5% 분해온도는 질소분위기에서 511∼442℃, 공기중에서 542∼438℃ 이었다.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1994; 18(1): 1-6

    Published online Jan 25, 1994