46350-87-2Relevant academic research and scientific papers
A biphenyl type acrylate liquid crystal resin synthesis method
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Paragraph 0034; 0036; 0046; 0047, (2019/02/02)
The invention discloses biphenyl acrylate liquid crystal resin and a synthetic method thereof. The synthetic method comprises the steps of synthesizing symmetrical and unsaturated liquid crystal resin through an acylation reaction and an esterification reaction by using unsaturated double bonds of acrylic acid; preparing di-ester and biphenyl liquid crystal resin by using the characteristics of 3,3',5,5'-tera-alkyl (or fluoro) biphenol, such as strong rigidity, large intermolecular attraction and conjugation effect of benzene rings. The biphenyl acrylate liquid crystal resin disclosed by the invention has the characteristics of the biphenyl liquid crystal resin, such as no color, generally relatively high clearing point, ultra-high dielectric anisotropy value, good physical and chemical properties, good optical and chemical stability, anisotropy, very wide liquid crystal phase region, adjustable viscosity, birefringence and physical parameters, good molding processing property and the like.
NOVEL REACTIVE MESOGEN COMPOUND HAVING SUPERIOR THERMOSTABILITY AND HIGH BIREFRINGENCE AND METHOD OF PREPARING THE SAME
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Paragraph 0073-0074, (2015/12/30)
Disclosed are a novel reactive mesogen compound having superior thermostability, high birefringence and a simple preparation process while possessing unique liquid crystal characteristics having molecular orientation by forming a polymer network through p
New Reactive Mesogen Compound having asymmetric linkage structure and the Method for Manufacturing the Same
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Paragraph 0220-0222, (2021/10/10)
The present invention refers to non-symmetric links by a contact lens with phosgene compounds and their manufacturing method relates to novel reactive mesoporous, more specifically the form a network polymer by dry toner particles over a wide temperature range exhibits liquid crystal phase, and excellent thermal stability, with a high birefringence rate price has large screen wide view angle liquid crystal display device is characterized in the ultra thin compensation film and phase difference film the long wave length line efficient on the opening in a thin-thickness compensation film and phase difference film formed on the multi-by a contact lens with non-symmetric links phosgene compounds and their novel reactive mesoporous relates to manufacturing method. Non-symmetric links of the present invention by a contact lens with phosgene mesoporous reactive novel compound is represented by [general formula]. [General formula] [General formula] in said P 1 and P 2 independently from each other CH 2 =CH 2-, HC=C-, CH 2 = CH-CH 2-, W 1 HCOCH-, CH 2 =CW 1-COO-, CH 2 =CW 2-(O) k1-, CH 3-CH=CH-O-, HO-CW 2 W 3-, HS-CW 2 W 3-, HW 2 N-, HO-CW 2 W 3-NH-, CH 2 =CW 1-CO-NH-, CH 2 =CH-(COO) k1-Phe-(O) k2-, Phe-CH=CH-, HOOC-, NCO-, OCN-, SCN-, W 4 W 5 W 6 Si-, , Graphical object is selected from (stage, m 2 and n2 when 0 to an event that both a, P 2 the H, OH, CH 3, alkoxy groups, phenyl, bis phenyl is coupler which has no group or polymers.), W 1 the H, Cl, CN, phenyl or 1 to 5 carbon atoms alkyl, W 2 and W 3, independently one of the other are hydrogen or 1 to 5 carbon atoms alkyl, W 4, W 5, and W 6 each independently a Cl, 1 to 5 carbon atoms oxa carbonyl alkyl or alkyl, the 1, 4-Phe k1 and polyphenylene and each independently a k2 is O or 1, Sp 1 and Sp 2 by a spacer group, independently 1-25 and carbon atoms, X 1 and X 2 independently from each other-O-, -S-, -S-CO-, -CO-S-, -CO-, -COO-, -OCO-, -O-COO-, -CO-NR-, -NR-CO-, -NR-CO-NR-, -OCH 2-, -CH 2 O-, -SCH 2-, -CH 2 S-, -CF 2 O-, -OCF 2-, -CF 2 S-, -SCF 2-, -CH 2 CH 2-, -CF 2 CH 2-, -CH 2 CF 2-, -CF=CF-, -CF 2 CF 2-, -CH=N-, -N=CH-, -N=N-, -CH=CR-, -CX=CX-, -C≡C-, -CH=CH-COO-, -OCO-CH=CH-, -NH-, -N=CH-S-, -CH=N-S-, -SO 2-, -O-Si (OH) 2-O one wave which step or ROM for storing programs, n 1 and n 2 and the 0 or 1, Z 1 and Z 2 independently from each other-O-, -S-, -S-CO-, -CO-S-, -CO-, -COO-, -OCO-, -O-COO-, -CO-NR-, -NR-CO-, -NR-CO-NR-, -OCH 2-, -CH 2 O-, -SCH 2-, -CH 2 S-, -CF 2 O-, -OCF 2-, -CF 2 S-, -SCF 2-, -CH 2 CH 2-, -CF 2 CH 2-, -CH 2 CF 2-, -CF=CF-, -CF 2 CF 2-, -CH=N-, -N=CH-, -N=N-, -CH=CR-, -CX=CX-, -C≡C-, -CH=CH-COO-, -OCO-CH=CH-, -NH-, -N=CH-S-, -CH=N-S-, -SO 2-, -O-Si (OH) 2-O one wave which step or ROM for storing programs, A 1 and A 2 phenyl independently from each other, 1, 4-phenylene, 1, 4-cyclohexenylene, naphthalene and, F, Cl, CN, OH, NO 2, or carbon number 1-7 in alkyl, alkoxy, alkanoyl a single substituted or can be multi-substituted, m 1 and m 2 independently from each other 0, 1 or 2 (m 1 + m 2 2, or carbon number 1-7 in alkyl, alkoxy, alkanoyl a single substituted or can be multi-substituted, the Or And, Y 1 and Y 2 independently from each other-O-, -S-, -S-CO-, -CO-S-, -CO-, -COO-, -OCO-, -O-COO-, -CO-NR-, -NR-CO-, -NR-CO-NR-, -OCH 2-, -CH 2 O-, -SCH 2-, -CH 2 S-, -CF 2 O-, -OCF 2-, -CF 2 S-, -SCF 2-, -CH 2 CH 2-, -CF 2 CH 2-, -CH 2 CF 2-, -CF=CF-, -CF 2 CF 2-, -CH=N-, -N=CH-, -N=N-, -CH=CR-, -CX=CX-, -C≡C-, -CH=CH-COO-, -OCO-CH=CH-, -NH-, -N=CH-S-, -CH=N-S-, -SO 2-, -O-Si (OH) 2-O-, or, Y [...] film [...] , Y 1 and Y 2 each other is coupled an asymmetric unequal, (stage, Y 1 e-COO-in when Y 2 the-CH 2 CH 2-is a not, Y 1 is-OCH 2-when Y 2-COO-of which is at, Y 1 e-CH=CH-COO-in when Y 2-COO or-CH 2 CH 2-is not.) R is hydrogen or 1 to 5 carbon atoms is alkyl.
NOVEL COMPOUND, POLYMERIZABLE LIQUID CRYSTALLINE COMPOUND, MONOMER/LIQUID CRYSTAL MIXTURE, AND POLYMER/LIQUID CRYSTAL COMPOSITE
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Paragraph 0103-0106, (2016/10/24)
The present invention provides a monomer/liquid crystal mixture that is ideal for industrial production in that the blue-phase temperature range prior to photopolymerization is expanded without using a special low-molecular-weight liquid crystalline polym
Mesophase structure of low-wetting liquid crystalline polyacrylates with new perfluoroalkyl benzoate side groups
Martinelli, Elisa,Paoli, Francesca,Gallot, Bernard,Galli, Giancarlo
experimental part, p. 4128 - 4139 (2011/10/30)
The synthesis, thermal behavior, bulk microstructure, and wettability of new polyacrylates carrying spaced 4-perfluorohexylpropyl benzoate and 4-perfluorooctylpropyl benzoate units in the side groups were Investigated. X-ray diffraction analysis proved the formation of different smectic mesophases (SmI2, SmF2, and SmC2) and the evolution of their structures and lattice parameters with temperature. The mesophase polymorphic behavior depended on the length of the perfluorinated chain segment in the repeat unit. The electron density profiles along the smectic layer normal were drawn and provided a deeper insight into the packing of the side chains in a tilted, double layer structure. Thin polymer films were cast from solution, and their low wettability was established by measurements of contact angles with different probing liquids. We suggest that the hydrophobicity and lipophobicity of the films are enhanced by the mesophase surface structure which is mediated by the high-order, mesophase bulk structure.
Examination of the interlayer strength of smectic liquid crystals through the study of partially fluorinated and branched fluorinated end-groups
Cowling, Stephen J.,Hall, Alan W.,Goodby, John W.,Wang, Ying,Gleeson, Helen F.
, p. 2181 - 2191 (2007/10/03)
Through the incorporation of partially fluorinated and branched fluorinated end-groups of ferroelectric liquid crystals we aimed to examine the effects on physico-chemical structures and properties, and electrical switching behaviour for a family of compo
Polymerizable compound, polymerizable liquid crystal composition containing the same, and optically anisotropic medium made from the composition
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Page 10, (2008/06/13)
A polymerizable compound represented by formula (I): wherein Q1 and Q2 each independently represent a hydrogen atom or a methyl group; p and q each independently represent an integer of 2 to 18; X1 and X2 each independently represent a single bond, -O-, -COO- or-OCO-; L1 represents -COO- or -OCO-; L2 represents-CH2CH2COO- or -CH2CH2OCO-; and Y1, Y2 and Y3 each independently represent a hydrogen atom, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkanoyl group having 2 to 7 carbon atoms, a cyano group or a halogen atom. Also disclosed are a polymerizable liquid crystal composition containing the compound, and an optically anisotropic medium produced from the composition.
POLYMERIZABLE COMPOSITION SHOWING LIQUID-CRYSTAL PHASE AND OPTICALLY ANISOTROPIC OBJECT MADE WITH THE SAME
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Page 76, (2008/06/13)
An object of the present invention is to provide a polymerizable liquid crystal composition incorporating a polymerizable liquid crystal compound which displays a low nematic phase temperature, displays excellent compatibility with other polymerizable liquid crystal compounds, and furthermore yields a product following polymerization, of good transparency and high mechanical strength. A polymerizable composition is provided which displays a liquid crystal phase, and moreover incorporates a liquid crystal backbone with two or more ring structures and a compound with a partial structure represented by the general formulaP-S-A-D-E- [wherein P1 represents a polymerizable functional group; S1 represents -(CH2)w-, - O(CH2)w-, -(CH2)wO-, -(CH2)wC(=O)O-, -(CH2)wOC(=O)-, -C(=O)O(CH2)w- or - OC(=O)(CH2)w- (w: 1 to 20); A1 and E1 each represent a hydrocarbon ring or a hetero ring, although E1 is a ring incorporated within the liquid crystal backbone; and D1 represents - C(=O)-O-(CH2)m-O-, -O(CH2)m-O-C(=O)-, -O-C(=O)-(CH2)m-O-, or -O(CH2)m-C(=O)-O- (m: 1 to 15)].
Synthesis of lithium ω-(m- and p-lithiophenoxy)alkoxides modified with magnesium 2-ethoxyethoxide. Crystal structures of bis[4-(2-hydroxyethoxy)phenyl]mercury and bis[4-(3-hydroxypropoxy)phenyl]mercury
Salteris, Constantinos S.,Kostas, Ioannis D.,Micha-Screttas, Maria,Steele, Barry R.,Heropoulos, George A.,Screttas, Constantinos G.,Terzis, Aris
, p. 63 - 70 (2007/10/03)
m- and p-Chlorinated ω-phenoxyalcohols 1, were transformed into the corresponding lithium ω-(m- and p-lithiophenoxy)alkoxides 4, respectively, by successive deprotonation with n-butyllithium and subsequent chlorine-lithium exchange by lithium naphthalene radical anion in THF-methylcyclohexane. Lithium 2-(4-lithiophenoxy)ethoxide (4a′) was also prepared by bromine-lithium exchange of 2-(4-bromophenoxy)ethanol (2a′) with two equivalents of n-butyllithium. The organolithiums were modified with magnesium 2-ethoxyethoxide in order to avoid ortho-metallation of the above-mentioned substituted arenes. Subsequent reaction of these intermediates with the electrophiles carbon dioxide, benzophenone, benzonitrile and 0.5 equivalents of mercuric chloride yielded the expected m- and p-substituted (ω-hydroxyalkoxy)benzenes in yields ranging from 50 to 75%. The crystal structures of the organomercurials 8a′ and 8b′ have been determined and revealed the Hg atom to occupy a crystallographic center of symmetry in a linear C-Hg-C arrangement.
Synthesis and Characterization of a Series of Liquid Crystal Monomers Containing a Novel Spacer Group Based on Vinylacetic Acid
Jacobs, Howard A.,Day, Gary M.,Jackson, W. Roy,Simon, George P.,Watson, Keith G.,Zheng, S.
, p. 695 - 702 (2007/10/02)
A series of liquid crystal monomers with side chains involving a vinylacetic acid unit have been prepared, and their thermal and optical properties compared with those of related compounds containing the same mesogenic unit but a conventional polymethylene spacer group based on a terminal alkene.
