503000-67-7Relevant articles and documents
Non-Uniform Optical Inscription of Actuation Domains in a Liquid Crystal Polymer of Uniaxial Orientation: An Approach to Complex and Programmable Shape Changes
Yang, Rong,Zhao, Yue
, p. 14202 - 14206 (2017)
Achieving complex shape change of liquid-crystal polymer networks (LCNs) under stimulation generally requires spatial configuration of the orientation direction, that is, patterned directors, of liquid crystal monomers prior to polymerization by means of treated surfaces. A strategy is demonstrated that needs only the simple uniaxial orientation of mesogens (monodomain) induced by mechanical stretching of LCNs. Using a rationally designed liquid crystal polymer, photocrosslinking is utilized to pattern or spatially organize the actuating monodomains in order to generate a differential contractile and/or extensional force field required for targeted shape change. Moreover, the approach enables versatile actuation modes and allows multiple shape changes to be programmed on a single piece of the polymer. This important feature is demonstrated with a specimen cut to have eight strips that, upon thermal stimulation, simultaneously display eight types of shape morphing.
Synthesis of side-chain liquid-crystalline cinnamide polymers based on post polymer reaction
Kondo, Mizuho,Dozono, Yoshiyuki,Goto, Kohei,Kawatsuki, Nobuhiro
experimental part, p. 121 - 130 (2012/10/18)
We prepared novel photoreactive liquid crystalline (LC) polymer via polymer reaction. The cinnamic acid activated ester easily converted to amide by mixing with amine derivative and solubility of the polymer reduced due to hydrogen bonding. Upon exposure
MULTI-FUNCTIONAL MONOMER HAVING A PHOTOREACTIVE GROUP, ALIGNMENT FILM FOR LCD USING THE MONOMER, AND LCD COMPRISING THE ALIGNMENT FILM
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Page/Page column 13-14, (2010/11/26)
Disclosed is a multi-functional monomer including a heat-curable functional group as well as a typical photoreactive group. In the multi-functional monomer, the photoreactive group is not chained to a main chain of a polymer. Thus, since it is possible to