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Preparation and Characterization of Polyhydroxyamide/MWNT Nanocomposites  

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)
Publication Information
Textile Science and Engineering / v.47, no.1, 2010 , pp. 7-14 More about this Journal
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
polyhydroxyamide; PBO precursor; carbon nanotube; nanocomposite; thermal and physical properties;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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