Proceedings of the Korean Fiber Society Conference (한국섬유공학회:학술대회논문집)
- 2001.10a
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- Pages.361-363
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- 2001
Thermal Cyclization of PHA and its Derivatives(I) - Model compound study -
PHA 및 그 유도체의 열적 고리화 거동 고리화 거동(I) - 모델화합물 연구 -
- Kim, Eun-Kyoung (Chungnam National University) ;
- Kim, Myung-Kyoon (Department of Textile Engineering, Chungnam National University) ;
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Baik, Doo-Hyun
(Department of Textile Engineering, Chungnam National University)
- Published : 2001.10.01
Abstract
Aromatic pelybenzoxazoles(PBOs) display excellent thermal stability plus good solvent and chemical resistance. Wholly aromatic PBOs, in fact, are soluble only in strong acids(e.g., sulfuric, rmethanesulfonic, triflic, and polyphosphoric acids). However, fully heterocyclized polymers have shown some drawbacks in solubility and processing. This problem of processing is currently being exploited to obtain unusual combinations of physical properties in fibers and films. (omitted)
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