83883-26-5Relevant articles and documents
Programmable Chromism and Photoluminescence of Spiropyran-Based Liquid Crystalline Polymer with Tunable Glass Transition Temperature
Hu, Wei,Qin, Shengyu,Ren, Yunxiao,Shao, Yu,Sun, Chang,Wang, Qian,Wu, Yu,Yang, Dengke,Yang, Huai,Zhang, Lanying
supporting information, p. 19406 - 19412 (2021/08/06)
Spiropyran-based materials (SPBMs) can give responses to the stimulations induced by the light, heat, force, or pH, which have been used as triggers for many smart materials. Here, a cross-linkable SPBM containing mesogenic-units is synthesized, which is pale-colored, non-photoluminescent and non-mesogenic at a spiro form, but dark-colored, photoluminescent, and mesogenic at a merocyanine form. Moreover, the dynamic interconversion behavior of the form in the different chemical environments are distinct. Liquid crystalline polymers (LCPs) containing the SPBMs cross-linked via visible light, own a photoswitchable glass transition temperature (Tg) and retain the switchable property; however, the SPBMs cross-linked via UV light will be locked at the MC state, because the molecular movement was frozen at the room temperature lower than the given Tg of the LCP. Thus, programmable chromism and photoluminescence based on the tunable Tg can be endowed to the functional materials prepared from the SPBMs.
Polymerizable compound, polymerizable composition, polymer, optical isomer and liquid crystal display device
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, (2021/03/13)
The invention relates to a compound, a polymerizable composition, a polymer, an optical isomer and a liquid crystal display device. This polymerizable compound has a structure represented by a generalformula (AO-1). The polymerizable composition containing the polymerizablecompound disclosed by the invention, the polymer obtained by polymerizing the composition, the optical isomer using the polymer as a constituent material and the liquid crystal display device are not prone to crystal precipitation and have high storage stability.
Allyl sulfide-based visible light-induced dynamically reshaped liquid crystalline elastomer/SWCNT nanocomposites capable of multimode NIR photomechanical actuations
Chen, Dongzhong,Cheng, Pin,Fang, Jianglin,Wu, Zhongying,Xu, Tianchi,Zhao, Weiguang
supporting information, p. 10902 - 10910 (2020/07/15)
Liquid crystalline elastomers (LCEs) combine the ordering character of a liquid crystal and the elasticity of a polymer network. The development of fully light-driven LCE-based soft actuators with good reshapeability and recyclability is in high demand. In this work, we prepared SWCNT/LCE composite films through the introduction of allyl sulfide-based dynamic covalent crosslinks in the LCE matrix and the well-dispersed filler single-walled carbon nanotubes (SWCNTs) with a strong photothermal effect. The SWCNT/LCE composite films were facilely fabricated with reorientation and remouldable capabilities regulated by 405 nm visible light. The monodomain composite films demonstrated multimode actuations of contraction, bending, curling, stretching recovery, and even shape memory driven by 808 nm near-infrared (NIR) light. Moreover, the monodomain spiral ribbon or stretching flat strip and the original polydomain composite film can be readily transformed into each other, and reshaped through easily achievable fabrication conditions. Therefore, the well-prepared SWCNT/LCE composite films with exchangeable covalent crosslinks showed promise as candidates for the development of multimode NIR photomechanical soft actuators with fully light-driven controllability and good remouldability. This journal is
The polymerizable liquid crystal compound, the polymerizable composition, polymer, a phase difference film and its manufacturing method, a laminate for transfer, optical member and method of manufacturing same, and display device
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, (2019/03/26)
A polymerizable liquid crystal compound which is represented by general formula (1). (In general formula (1), the symbols are as defined in the description.)
Optical anisotropic, body and liquid crystal display device using same (by machine translation)
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, (2019/12/25)
The present invention relates to, an optically isotropic and liquid crystal display device. according to Formula I, and discloses a compound having a polymerizable group, represented by Formula I, and a liquid crystal display device according to the present invention. In-flight vehicle A1 , A2 An, alkyl group having an alkyl group having 3 - 10 a number, of carbon atoms 4 - 10, an, alkenyl group having a number of, carbon atoms, or an alkoxy group having a 3 - 10 number of carbon atoms as described above may be selected independently from each other. 2 -O-Optionally, optionally hydrogen, optionally substituted with a hydrogen, atom, optionally substituted with a hydrogen atom in F the range of ;Z up to 'OH'. 1 , Z2 Each independently represents-COO-CO-CH2 COO - COOCH2 - CH. 2 CH2 Or COO - COOCH2 CH2 ; N, m, respectively, independently 1, 2 3. the present invention provides, a polymerizable compound having, an excellent optical performance and excellent, intermiscibility, and good stability, is not susceptible to deterioration and polymerization in the production, and storage process, is, inexpensive to produce, and is. simple to produce and facilitate large-scale commercialization applications. (by machine translation)
Novel compound, adhesive composition, adhesive film and display device
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, (2018/02/10)
The present invention relates to a novel compound, an adhesive composition comprising the same, an adhesive film made of the adhesive composition, and a display device comprising the adhesive film, wherein the novel compound according to the present invention is an acrylic compound which is a copolymer obtained by copolymerizing a diphenyl-oxadiazine main chain in a molecular structure with a monomer having an ester group and a terminal group capable of thermal polymerization with a linking ring, and has excellent thermal stability and optical characteristics, and the adhesive film comprising the same can realize excellent transparency, thermal stability and flexibility.COPYRIGHT KIPO 2017
Triphenylene derivative and use thereof
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Page/Page column 13, (2016/05/19)
A triphenylene derivative of general formula (I) or general formula (II) which can be used as a component of liquid crystal medium and the use thereof are provided in the present invention. This compound can be used to form a negative discotic liquid crystal composition having a suitable temperature range of liquid crystal phase and a lower clearing point, which can be used in TFT liquid crystal display as an optical compensation film (cell) material.
Synthesis, structure, and mesomorphism of novel liquid crystalline acrylate monomers and polymers
Xu, Xiao-Xu,Chao, Chun-Ying,Yao, Xi-Jing
, p. 1 - 10 (2016/02/19)
A series of novel liquid crystalline monomers (M1-M8) and side chain polymers base polyacrylate backbone were synthesized. The chemical structures were characterized by FT-IR and 1H-NMR spectra. The mesomorphism and thermal behavior was investigated by polarizing optical microscopy, differential scanning calorimetry, and thermogravimetric analysis. The relationships of structure and mesomorphism are discussed in detail. The eight monomers and their corresponding polymers all show enantiotropic nematic phase. With increasing the spacer length or flexibility of the terminal group, the melting temperature (Tm) and isotropic temperature (Ti) of the corresponding monomers and polymers all decreased. However, with increasing the rigidity of the mesogenic core, Tm and Ti of the corresponding monomers and polymers all increased. TGA showed that all the polymers obtained in this study had excellent thermal stability.
hockey stic shaped reactive mesogen compound and method for preparing thereof
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, (2017/04/13)
The present invention relates to an asymmetric hockey stick type mesogen compound, and to a preparation method thereof. More particularly, the present invention relates to a novel asymmetric hockey stick type reactive mesogen compound having five benzene groups (5-rings), and a fluorine substituent on benzene at one end thereof. The asymmetric hockey stick type reactive mesogen compound has excellent orientation characteristics of liquid crystal molecules, and thus does not have optical defects such as light leakage, and the like. Also, the asymmetric hockey stick type reactive mesogen compound is suitable to be applied to a vertical alignment (VA) mode, and can be used as a source material for realizing a next generation high speed responsive display operating at a low voltage.
The first blue phase reactive monomers containing a bi-mesogenic core and their side-chain polymers
Wei, Chong-Lun,Lin, Yen-Ting,Chang, Jin-Huai,Chiang, I-Hung,Lin, Hong-Cheu
, p. 4663 - 4669 (2015/12/05)
Two novel blue phase (BP) reactive monomers M1 and M2 containing a bi-mesogenic core are first reported by introducing two end-attached acrylic spacers with different lengths. Due to the self-assembly of bi-mesogenic cores with the same side-by-side end-attached acrylate spacers in homopolymers P1 and P2, no blue phase could be induced by homopolymerization of M1 and M2. However, by interrupting the self-assembly of bi-mesogenic cores with different side-by-side spacer lengths of copolymers P12, double-twisted cylinders of BPIII could be further extended by copolymerization of M1 and M2 with different molar ratios. With M1:M2 = 5:5 (molar ratio) in both side-chain copolymers P12(soln:5/5) and P12(photo:5/5) rather than binary mixture M1/M2(5/5), the widest BPIII ranges of 5.3 °C and 3.8 °C could be obtained by solution- and photo-polymerization, respectively.
