Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Preparation and Characterization of Polyhydroxyamide/MWNT Nanocomposites

Polyhydroxyamide/MWNT 나노복합체의 제조와 특성분석

  • Lee, Jin-Soo (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Jee, Min-Ho (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Lee, Min-Ho (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Baik, Doo-Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
  • 이진수 (충남대학교 유기소재.섬유시스템 공학과) ;
  • 지민호 (충남대학교 유기소재.섬유시스템 공학과) ;
  • 이민호 (충남대학교 유기소재.섬유시스템 공학과) ;
  • 백두현 (충남대학교 유기소재.섬유시스템 공학과)
  • Received : 2009.12.14
  • Accepted : 2010.01.30
  • Published : 2010.02.28
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Abstract

Polyhydroxyamide(PHA), a precursor polymer of polybenzoxazole(PBO), was synthesized by low temperature polymerization of 3,3'-dihydroxybenzidine(DHB) and isophthaloyl chloride(IPC) in N,N-dimethylacetamide (DMAc) medium. MWNT dispersions were prepared by ultrasonication of pristine MWNT(p-MWNT) and acid-modified MWNT(a-MWNT) in DMAc. PHA/a-MWNT and PHA/p-MWNT nanocomposite films were prepared by casting of mixed solution. The tensile properties of PHA/a-MWNT nanocomposite films were enhanced compared with those of pure PHA. DSC and TGA analyses revealed that the PHA/a-MWNT nanocomposites cyclized at lower temperature and showed better thermal stability compared to the pure PHA film.

Keywords

Acknowledgement

Supported by : 지식경제부

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