104631-97-2Relevant academic research and scientific papers
Photoresponsive Ionic Conductivity of Polymer Composite Films Containing Azobenzene Liquid Crystal
Kimura, Keiichi,Suzuki, Tatsuya,Yokoyama, Masaaki
, p. 6090 - 6093 (1990)
Ionic-conductivity control by external stimulation was investigated with thin composite films consisting of poly(vinyl chloride), azobenzene liquid crystal 1, and LiClO4 (or its 12-crown-4 complex).On heating the composite film, a significant jump in the ionic conductivity was attained around ΤKN (transition temperature from crystal to nematic states) of 1.The ionic-conductivity change is attributable to the phase transition of 1, which in turn enhances the mobility of ionic species in the film.UV light irradiation on the composite film caused photoisomerizationfrom trans to cis forms of the azobenzene derivative, which in turn led to its phase transition from crystal state (below the ΤKN) or nematic state (above the ΤKN) to isotropic liquid state, thus augmenting the ionic conductivity of the composite film by more than 2 orders of magnitude compared with that under dark conditions.Visible light irradiation after UV irradiation promoted cis-to-trans isomerization of 1, diminishing the UV-enhanced ionic conductivity of the composite film, especially at room temperature, to the initial ionic conductivity.Alternating irradiation by UV and visible lights afforded reversible ionic-conductivity switching in the composite film.A novel type of electrostatic imaging process was realized by using the photoresponsive ion-conducting composite film of 1.
Multimodal control of liquid crystalline mesophases from surfactants with photoswitchable tails
Houston, Judith E.,Kelly, Elaine A.,Kruteva, Margarita,Chrissopoulou, Kiriaki,Cowieson, Nathan,Evans, Rachel C.
supporting information, p. 10945 - 10952 (2019/09/19)
Non-invasive manipulation of the hierarchical structure of functional materials is a key challenge in the advancement of optoelectronics, energy conversion and storage devices and drug delivery systems. Lyotropic liquids crystals, with their long-range or
PHOTO-INDUCED IONIC CONDUCTIVITY SWITCHING IN POLYMER/PHOTOCHROMIC LIQUID CRYSTAL COMPOSITE FILMS CONTAINING LITHIUM/CROWN ETHER COMPLEX
Kimura, Keiichi,Suzuki, Tatsuya,Yokoyama, Masaaki
, p. 227 - 230 (2007/10/02)
Thin composite films consisting of poly(vinyl chloride), azobenzene liquid crystal, lithium ion/12-crown-4 complex exhibited reversible photo-induced switching of ionic conductivity based on the photochromic phase transition of the azobenzene derivative.The ionic conductivities increased by more than two orders of magnitude by UV light and then reverted to the initial state by visible light at ambient temperature.
