KR20200009803A - 콜레스테릭 액정 조성물을 위한 표면 에너지가 조절된 광감응형 키랄 도펀트 - Google Patents
콜레스테릭 액정 조성물을 위한 표면 에너지가 조절된 광감응형 키랄 도펀트 Download PDFInfo
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- KR20200009803A KR20200009803A KR1020180084693A KR20180084693A KR20200009803A KR 20200009803 A KR20200009803 A KR 20200009803A KR 1020180084693 A KR1020180084693 A KR 1020180084693A KR 20180084693 A KR20180084693 A KR 20180084693A KR 20200009803 A KR20200009803 A KR 20200009803A
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
- C09K19/586—Optically active dopants; chiral dopants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C245/00—Compounds containing chains of at least two nitrogen atoms with at least one nitrogen-to-nitrogen multiple bond
- C07C245/02—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides
- C07C245/06—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings
- C07C245/10—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
Description
화합물 | 접촉각 | 표면에너지 (dyne/cm) |
|
물 | 디아아오도메탄 | ||
비교예 | 99.3 | 33.2 | 41.4 |
실시예 1 | 107.2 | 49.1 | 24.7 |
실시예 3 | 83.2 | 42.2 | 39.1 |
Claims (10)
- 하기 화학식 1로 표시되는 키랄 도펀트 화합물 또는 이의 입체 이성질체:
[화학식 1]
(상기 화학식 1에 있어서,
X1 및 X2는 각각 독립적으로 N 또는 CH이고,
Y1 및 Y2는 각각 독립적으로 N 또는 CH이고,
L1 및 L2는 각각 독립적으로 , , , , , , 또는 이고, 및
R1 및 R2는 각각 독립적으로 치환 또는 비치환된 C1-C20의 알킬, 치환 또는 비치환된 C1-C20의 알콕시, 또는 -[(CH2)a-O-(CH2)b)m-이되,
R1 및 R2 중 하나가 비치환 알킬인 경우, 다른 하나는 비치환 알킬이 아니고,
여기서, 상기 치환된 알킬 또는 상기 치환된 알콕시는 할로젠, 히드록시, 옥소(=O), 및 아미노로 이루어진 군으로부터 선택되는 1종 이상의 치환기로 치환되고,
상기 a 및 b는 각각 독립적으로 0 내지 5이 정수이되, a 및 b 중 적어도 하나가 0인 경우, 다른 하나는 0이 아니고, 및
상기 -[(CH2)a-O-(CH2)b)m-의 주쇄 탄소는 선택적으로, 할로젠, 히드록시, 옥소(=O), 및 아미노로 이루어진 군으로부터 선택되는 1종 이상의 치환기로 치환될 수 있다).
- 제1항에 있어서,
R1 및 R2는 각각 독립적으로 할로젠으로 치환 또는 비치환된 C1-C20의 알킬, 또는 -(CH2OCH2)n-CH2OCH3(여기서, n은 0 내지 20의 정수이다)이되,
R1 및 R2 중 하나가 비치환 알킬인 경우, 다른 하나는 비치환 알킬이 아닌 것을 특징으로 하는 키랄 도펀트 화합물, 이의 입체 이성질체.
- 제1항에 있어서,
X1, X2, Y1, 및 Y2는 N인 것을 특징으로 하는, 키랄 도펀트 화합물 또는 이의 입체 이성질체.
- 제1항에 있어서,
상기 키랄 도펀트 화합물은 20 - 50 dyne/cm의 표면에너지를 갖는 것을 특징으로 하는 키랄 도펀트 화합물, 또는 이의 입체 이성질체.
- 제1항의 키랄 도펀트 화합물, 또는 이의 입체 이성질체를 포함하는, 네마틱 또는 콜레스테릭 액정 조성물.
- 제1항의 키랄 도펀트 화합물, 또는 이의 입체 이성질체, 또는 제8항의 네마틱 또는 콜레스테릭 액정 조성물을, 이의 배향 상태에서 박막의 형태로 중합시켜 수득된 키랄 이방성 중합체.
- 제8항의 네마틱 또는 콜레스테릭 액정 조성물, 또는 제9항의 키랄 이방성 중합체를 포함하는 광학 센서.
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US20070237906A1 (en) * | 2004-01-28 | 2007-10-11 | Kent Displays Incorporated | Chiral nematic photo displays |
US20140117284A1 (en) | 2012-08-24 | 2014-05-01 | Kent State University | 2,2'-Binaphthalene Ester Chiral Dopants for Cholesteric Liquid Crystal Displays |
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