In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential glass applications owing to their light-scattering properties. this study, LC were prepared by mixing nematic (E7) poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO) as a gelator. The gel formed dense PFO network conc...

Synthetic LAPONITE®-clay particles with platelet-like shape display strong aging when dispersed in aqueous solutions, preventing the latter from reaching their natural liquid-crystalline equilibrium state. Here we introduce a facile method that successfully prevents this aging behaviour and enables accessing the systems' liquid-crystal and crystalline phases. We graft the comb-like polymer PLL-...

A corrected measurement method was investigated for the silicon photodiode detector. The measured transmittance error between detector and light power meter occurs depends on incident power. In our work, non-linear empirical formula derived from results of meter. addition, used to correct measuring polymer-dispersed liquid crystal, are identical those experimental further show that is faster th...

Experimental studies of phase equilibrium and growth morphologies of novel polymer-dispersed liquid crystal (PDLC) mixtures of PS (polystyrene) and liquid crystals that exhibit a direct isotropic/smecticA (lamellar) mesophase transition were performed for PS/10CB (decyl-cyanobiphenyl) and PS/12CB (dodecyl-cyanobiphenyl). The studies were performed using polarized optical microscopy (POM) and di...

Stable solutions of conjugated poly(phenylene vinylene)s and poly(phenylene ethynylene)s in nematic liquid crystals are reported. The polymers all contain triptycene units fused into their backbones to obtain the high solubility needed to maintain solubility in complex liquid crystalline media. The polymer backbones align with the director of the nematic liquid crystal, and by applying electric...

We measured the angular dependence of the 0th, +/-1 st, and +/-2 nd optical diffraction orders from a 50 microm thick transmission grating recorded in a UV-curable holographic polymer-dispersed liquid crystal (HPDLC) made from commercially available constituents. The analysis was performed for two orthogonal polarizations of the probe beams. The emphasis was laid on the temperature dependence o...

A liquid crystal polymer (LCP) self-assembled on a photoirradiated substrate can modify the viscoelastic response of liquid crystal medium on the substrate. Sum-frequency vibrational spectroscopy shows that the phenyl groups of LCP are oriented epitaxially with layer thickness and an in-plane alignment order much higher than that at the photoirradiated surface can be yielded. The liquid crystal...