한국섬유공학회:학술대회논문집 (Proceedings of the Korean Fiber Society Conference)
- 한국섬유공학회 1998년도 가을 학술발표회논문집
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- Pages.94-97
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- 1998
Synthesis of Liquid Crystalline Copolyurethanes Containing Imide Unit
- Lee, Dong-Jin (Department of Textile Engineering, Pusan National University) ;
- Lee, Tae-Jung (Department of Textile Engineering, Pusan National University) ;
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Kim, Han-Do
(Department of Textile Engineering, Pusan National University)
- 발행 : 1998.10.01
초록
We have been studying :he synthesis of thermotropic polyurethanes, based on structural modifications by means of (i) the introduction of bulky substituent group in the aromatic ring to decrease the degree of lateral packing, (ii) the copolymerization of two kinds of monomers having different alkylene lengths to lower the regularity of the polymer structure, and (iii) the use of nonlinear monomers to lower the persistence length of the polymer chain in the liquid crystalline phase and to decrease the lateral interactions in the solid state. (omitted)
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