|
|
|
|
|
 |
 년도별 목차보기 |
| * 원문 PDF 파일은 로그인 하시기 바랍니다. |
 |
|
| 발행년도/권호 |
1995 년 / 권호: V.7,no.4,Dec |
| 논문제목1(원어) |
Spacer를 가지고 방향족 polyurethane의 분자간 상호 작용에 의한 액정성의 발견 |
| 논문제목2(타언어) |
Analysis of Intermolecular Interaction in Thermotropic Aromatic Polyurethanes with Flexible Spacers |
| 저자(원어) |
Lee, Jong Back (Dept. of Textile Eng., Pusan National Univ., Pusan, Korea) Song, Jin Cherl (Instituted of Industrial Science, University of Tokyo, 7-22-1, Roppongi, Minato-ku, Japan) |
| 저자(타언어) |
Lee, Jong Back (Dept. of Textile Eng., Pusan National Univ., Pusan, Korea) Song, Jin Cherl (Instituted of Industrial Science, University of Tokyo, 7-22-1, Roppongi, Minato-ku, Japan) |
| 소속(원어) |
Lee, Jong Back (Dept. of Textile Eng., Pusan National Univ., Pusan, Korea) Song, Jin Cherl (Institut |
| 소속(타언어) |
Lee, Jong Back (Dept. of Textile Eng., Pusan National Univ., Pusan, Korea) Song, Jin Cherl (Institut |
| 시작/끝
페이지 |
8 ~ 15 총페이지 : 8 |
| 언어(원어) |
Korean |
| 초록 |
A series of thermotropic Polyurethanes mesogenic unit were synthesized by polyaddition of a para-type diisocyanate such as 2,5-tolylene diisocyanate(2,5-TDI) with 4-4\\\'-bis(-hydroxyalkoxy) biphenls(BPm: : m is the carbon number of the hydroxyalkoxy group) in DMF. Intrinsic viscosities of the polymers were in the range of 0.41~0.99dL/g DSC thermograms for these polymers exhibited two endothermic peaks corresponding to phase transitions of melting and isotropization. For examplem polyurethane 2,5-TDI/BPll with [η]=0.99 prepared from 2.5-TDI and 4,4\\\'-bis[11-hydroxyundecaoxy biphenyl(BP11) a liquid crystalline phase from 156 to 173. The thermotropic properites of liquid crystalline polyurethanes have been investigated by wide-angle X-ray scatter(WAXS), infrared (IR) spectroscopy, and differential scanning calorimetry (DSC). The mesomorphic behavior of the polyurethanes was concluded to be greatly dependent on the intermolecular hydrogen bonds through the urethane. |
| 키워드 |
|
| 학회지 |
|
| Reference |
|
|
 |
 |
 |
|
|
|
|
간행물정보
한국염색가공학회지
