45101-66-4Relevant academic research and scientific papers
Cooperative and Independent Effect of Modular Functionalization on Mesomorphic Performances and Microphase Separation of Well-Designed Liquid Crystalline Diblock Copolymers
Lei, Lan,Han, Li,Ma, Hongwei,Zhang, Ruixue,Huang, Shuai,Shen, Heyu,Yang, Lincan,Li, Chao,Zhang, Songbo,Bai, Hongyuan,Ma, Qingchi,Li, Yang
supporting information, p. 11199 - 11208 (2020/07/30)
Liquid crystalline block copolymers (LCBCPs) are promising for developing functional materials owing to an assembly of better functionalities. Taking advantage of differences in reactivity between alkynyl and vinyl over temperature during hydrosilylation, a series of LCBCPs with modular functionalization of the block copolymers (BCPs) are reported by independently and site-selectively attaching azobenzene moieties containing alkynyl (LC1) and Si-H (LC2) terminals into well-designed poly(styrene)-block-polybutadienes (PS-b-PBs) and poly(4-vinylphenyldimethylsilane)-block-polybutadienes (PVPDMS-b-PBs) produced from living anionic polymerization (LAP). By the principle of modular functionalization, it is demonstrated that mono-functionalized (PVPDMS-g-LC1)-b-PB and PS-b-(PB-g-LC2) not only maintain independence but also have cooperative contributions to bi-functionalized (PVPDMS-g-LC1)-b-(PB-g-LC2) in terms of mesomorphic performances and microphase separation, which is evident from differential scanning calorimetry (DSC) and polarized optical morphologies (POM) and identified by powder X-ray diffractions. With the application of the new principle of modular functionalization, local-crosslinked liquid crystalline networks (LCNs) with controlled functionality are successfully synthesized, which show well-controlled phase behaviors over molecular compositions.
COMPOUND, CURED PRODUCT, POLYMER, PHOTO-ALIGNMENT FILM, OPTICALLY ANISOTROPIC BODY AND LIQUID CRYSTAL DISPLAY ELEMENT
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Paragraph 0190, (2018/08/30)
A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.
Preparation method of 6-chlorohexyl acrylate
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Paragraph 0014-0015, (2017/02/09)
The invention relates to a preparation method of 6-chlorohexyl acrylate. The preparation method of 6-chlorohexyl acrylate comprises the following steps: adding a polymerization inhibitor, and by taking 1,6-epoxyhexane and acryloyl chloride or methylacryloyl chloride as raw materials and adopting zinc chloride, zinc bromide or zinc iodide as a catalyst, carrying out ring-opening reaction at the temperature of 0-80 DEG C to synthesize the 6-chlorohexyl acrylate compound, wherein the molar ratio of acryloyl chloride or methylacryloyl chloride to 1,6-epoxyhexane in the raw materials is 1:(1.0-4.0), and the molar ratio of the catalyst to acryloyl chloride or methylacryloyl chloride is 0.01-20%. By adopting the preparation method provided by the invention, the 6-chlorohexyl acrylate compound product can be prepared under mild conditions with high yield.
POLYMERIZABLE DICHROIC DYES
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Page/Page column 8; 9, (2015/12/08)
The present invention relates to new dichroic dyes, their composition with slave materials and their use for a dichroic polymer network, a dichroic liquid crystalline polymer film (LCP film) or a dichroic liquid crystalline polymer gel, which for instance find application as electro- optical or optical devices.
Photorefractive effect of photoconductive-polymer-stabilized ferroelectric liquid crystals
Sasaki, Takeo,Hazato, Hirotada,Katsuragi, Atsushi,Nakazawa, Yukihito
experimental part, p. 81 - 98 (2012/08/08)
The photorefractive effect of photoconductive-polymer-stabilized ferroelectric liquid crystals (FLCs) was investigated. A photoconductive acrylate monomer and an electron acceptor compound were mixed with an FLC, and the mixtures were photopolymerized in
Two selective practical routes to ω-cyanoalkyl methacrylic esters
Fort, Yves,Dubosclard-Gottardi, Christine
, p. 2811 - 2818 (2007/10/03)
Convenient and selective preparations of ω-cyano-alkyl methacrylic esters are described using either PTC conditions or acetone cyanohydrin. The scope and limitations of the two methods are compared.
A new synthesis of thiocyanatoalkyl (meth)acrylic esters
Berthe,Fort,Caubere
, p. 617 - 628 (2007/10/02)
The selective sunthesis of thiocyanatoalkyl meth(acrylic) esters were obtained with 71 to 95% yield under phase transfer catalysis from corresponding chloro- and bromoalkyl (meth)acrylic esters and potassium thiocyanate in presence of potassium iodide.
