公开(公告)号：KR1019990030822A

公开(公告)日：1999-05-06

申请号：KR1019970051256

申请日：1997-10-06

Applicant: 한국과학기술원

Inventor： 김진택 ,  최재학 ,  이명구

IPC: C08F36/00

Abstract: 본 발명은 신규 고분자 기재인 폴리(2-(폴리(에틸렌글리콜)옥시카르보닐)비시크로 [2.2.1]헵타-2.5-디엔) 및 액정과의 혼합물에 알칼리 금속염을 첨가하여 우수한 전기적 광학적 성질을 지니는 용매증발법에 의한 고분자액정복합막 제조방법에 관한 것으로서, 형성된 복합막 내의 이온전도도의 증가로 인하여 전기장 개폐시 초기 구동전압이 낮고 빠른 응답속도를 나타내는 특성을 갖고 있다. 이는 복합막 내부에 분산되어 있는 알칼리 금속염 이온들 때문에 이온전도도가 증가하기 때문이다. 본 발명은 광, 전기 특성 향상을 위한 신규 고분자 기재 폴리(2-(폴리(에틸렌글리콜)옥시카르보닐) 비시클로[2.2.1]헵타-2,5-디엔)의 합성법과 그의 이온전도도 효과를 이용한 고분자액정복합막의 제조방법에 관한 것이다.

公开(公告)号：KR100258515B1

公开(公告)日：2000-06-15

申请号：KR1019970051256

申请日：1997-10-06

Applicant: 한국과학기술원

Inventor： 김진택 ,  최재학 ,  이명구

IPC: C08F36/00

Abstract: PURPOSE: A novel polymer matrix of poly(2-poly(ethylene glycol)oxycarbonyl)bicyclo(2,2,1)hepta-2,5-hepta-diene and its manufacturing method are provided. Also, a polymer dispersed liquid crystal containing the same, which has improved optical and electrical properties due to increased ion conductivity, and its manufacturing method is also provided. CONSTITUTION: The poly(2-poly(ethylene glycol)oxycarbonyl)bicyclo(2,2,1)hepta-2,5-hepta-diene is represented by the following general formula (III) and prepared by radical polymerizing poly(ethylene glycol)propionate represented by the following general formula (I); prepared by a condensation reaction of propionic acid and polyethylene glycol and 2-(poly(ethylene glycol)oxycarbonyl)bicyclo(2,2,1)hepta-2,5-diene represented by the following general formula (II); and prepared by a Diels-Alder reaction of cyclopentadiene. The polymer dispersed liquid crystal comprises: (i) 100 part weight of the poly(2-poly(ethylene glycol)oxycarbonyl)bicyclo92,2,10hepta-2,5-hepta-diene; (ii) 40-80 part by weight of liquid crystal; and (iii) 20-80 part by weigh of an alkali metallic salt. The polymer dispersed liquid crystal is prepared by: (i) dissolving poly(2-poly(ethylene glycol)oxycarbonyl)bicyclo(2,2,1)hepta-2,5-hepta-diene, liquid crystal and alkali metallic salt in a solvent selected from tetrahydrofuran, methanol or acetoneto prepare a uniform mixture; and (ii) coating transparent conductive layer coated indium-tin-oxide glass base plate with the mixture and then heating the glass base plate at a temperature of 5-80 deg.C to evaporate the solvent remaining in the mixture.

Abstract translation: 目的：提供聚（2-聚（乙二醇）氧羰基）双环（2,2,1）庚-2,5-庚二烯的新型聚合物基质及其制备方法。 此外，还提供了由于离子传导性的提高而具有改善的光学特性和电学特性的含聚合物分散液晶及其制造方法。 构成：聚（2-聚（乙二醇）氧羰基）双环（2,2,1）庚-2,5-庚二烯由以下通式（III）表示，并通过自由基聚合聚（乙二醇 ）丙酸酯，由以下通式（I）表示; 由以下通式（II）表示的丙酸和聚乙二醇与2-（聚（乙二醇）氧羰基）双环（2,2,1）庚-2,5-二烯的缩合反应制备; 并通过Diels-Alder反应制备环戊二烯。 聚合物分散液晶包括：（i）100份重量的聚（2-聚（乙二醇）氧羰基）双环92,2,10-庚-2,5-庚二烯; （ii）40-80重量份液晶; 和（iii）20-80重量份的碱金属盐。 聚合物分散液晶通过以下步骤制备：（i）将聚（2-聚（乙二醇）氧羰基）双环（2,2,1）庚-2,5-庚二烯，液晶和碱金属盐溶于 溶剂选自四氢呋喃，甲醇或丙酮，制备均匀的混合物; 和（ii）用混合物涂覆透明导电层的铟锡氧化物玻璃基板，然后在5-80℃的温度下加热玻璃基板以蒸发残留在混合物中的溶剂。