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A Study on the High Performance Nanocomposite Fibers Based on Polybenzoxazoles(I)-Synthesis and Characterization of Polyhydroxyamide-clay Nanocomposites-  

Baik, Doo-Hyun (Department of Textile Engineering, Chungnam National University)
Lee, Won-Ok (Department of Textile Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.42, no.5, 2005 , pp. 296-301 More about this Journal
Abstract
In the present study we investigated a clay nanocomposite based on polybenzoxazole (PBO) in order to get high performance PBO nanocomposite fibers. We synthesized polyhydroxyamide (PHA), a precursor polymer to PBO, by low temperature polymerization of dihydroxybenzidine and isophthaloyl chloride. Three kinds of clay dispersions were prepared by in-situ polymerization method, direct mixing of PHA and organo-clay, and mixing with sonication, respectively. X-ray diffraction experiment revealed that PHA-clay nanocomposite showed exfoliation in both direct mixing method and mixing with sonication method. On the other hand, a PHA-clay composite prepared by in-situ method showed no intercalation and exfoliation. TGA and DSC study revealed that the PHA-clay nanocomposites could cyclize at lower temperature compared with PHA. This implies that clay nanoparticles affect the thermal cyclization reaction of PHA lowering the cyclization temperature.
Keywords
polyhydroxyamides; polybenzoxazoles; clay; nanocomposites;
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1 D. H. Baik, H. Y. Kim, and S. W. Kantor, 'Synthesis and Cyclization of Aromatic Polyhydroxyamides Containing Trifluoromethyl Groups', Fibers and Polymers, 2002, 3(3), 91-96   DOI   ScienceOn
2 D. H. Baik, E. K. Kim, and M. K. Kim, 'Preparation of New Heat-resistant Fiber Materials Using Polymeric Precursors to Polybenzoxazoles(I)', J Korean Fiber Soc, 2003, 40, 13-19
3 N. Hasegawa, A. Tsukigase, and A. Usuki, 'Silicate Layer Dispersion in Copolymer/clay Nanocomposites', J Appl Polym Sci, 2005, 98(4), 1554-1557   DOI   ScienceOn
4 T. J. Pinnavaia and G. W. Beall, 'Polymer-Clay Nanocomposites', John Wiley & Sons, NY, 2000, Chapter 8
5 D. H. Baik, H. Y. Kim, M. K. Kim, and S. W. Kantor, 'Synthesis and Cyclization of Aromatic Polyhydroxyamides, 1. Model Compound Study', Korean Fiber Soc 1998 Fall Meeting, pp.37-40, 1998
6 D. H. Baik, M. K. Kim, H. Y. Kim, and S. W. Kantor, 'Synthesis and Cyclization of Aromatic Polyhydroxyamides. 2. Polyhydroxyamides Containing Trifluoromethyl Group', Korean Fiber Soc 1998 Fall Meeting, pp.41-44, 1998
7 X. F. Qian, J. Yin, Y. F. Yang, Q. H. Lu, Z. K. Zhu, and J. Lu, 'Polymer-inorganic Nanocomposites Prepared by Hydrothermal Method: Preparation and Characterization of PVA-transition-metal Sulfides', J Appl Polym Sci, 2001, 82(11), 2744-2749   DOI   ScienceOn
8 H. Tyan, Y. Liu, and K. Wei, 'Enhancement of lmidization of Poly(arnic acid) through Forming Poly(amic acid)/Organoclay Nanocomposites', Polymer, 1999, 40, 4877-4886   DOI   ScienceOn
9 H. Jiang, W. W. Adams, and R. K. Eby in 'High Technology Fibers Part D', M. Lewin Ed., Marcel Dekker, NY, 1996, Chapter 2
10 P. K. Kim, P. Pierini, and R. Wessling, 'Thermal and Flammability Properties of Poly(p-phenylenebenzobisoxazole)', J Fire Science, 1993, 11(4), 296-307   DOI   ScienceOn
11 D. H. Baik and M. K. Kim, 'Synthesis and Thermal Properties of Aromatic Polyhydroxyamide Copolymers', Korean Fiber Soc 1998 Spring Meeting, pp.335-339, 1999
12 M. Kato, H. Okamoto, N. Hasegawa, A. Tsukigase, and A. Usuki, 'Preparation and Properties of Polyethylene-clay Hybrids', Polym Eng Sci, 2003, 43(6), 1312-1316   DOI   ScienceOn
13 N. Hasegawa, H. Okamoto, M. Kato, A. Usuki, and N. Sato, 'Nylon 6/Na-montmorillonite Nanocomposites Prepared by Compounding Nylon 6 with Na-montmorillonite Slurry', Polymer, 2003, 44(10), 2933-2937   DOI   ScienceOn
14 T. Takeichi, T. Agag, and T. Koga, 'Studies on Thermal and Mechanical Properties of Polyimide-clay Nanocomposites', Polymer, 2001, 42(8), 3399-3408   DOI   ScienceOn
15 J. M. G. Cowie, 'Polymers: Chemistry and Physics of Modem Materials', 2nd Ed., Blackie Academic & Professional, NY, 1991, p.350