Impact of crosslinking agents with steric cyclic groups on the properties of polymer-dispersed liquid crystals.

As a type of intelligent dimming film, polymer-dispersed liquid crystals (PDLCs) have been widely applied in various fields, such as smart windows, light shutters and displays. The properties of PDLCs are greatly influenced by the structure of the raw materials. In this work, the impact of crosslinking agents with different cyclic or chain groups was investigated by comparing the electro-optical performance and the morphology of the polymer matrix in the as-made PDLC films.

Study on the Effect of α-Substituted Acrylate Monomers on the Electro-Optical Properties of Polymer-Dispersed Liquid Crystal Films.

Polymer-dispersed liquid crystals (PDLCs) show great application potential in the areas of displays and smart windows. However, their electro-optical (E-O) properties such as contrast ratio and threshold voltage still need further improvement. In this study, the effects of α-substituted acrylate monomers on the morphology and E-O properties of PDLC composite films were systematically studied.

[Advances in identification of Chinese medicines by NIRS].

This review addresses the latest situations and advances of near infrared spectroscopy (NIRS) in which detection of counterfeits and imitations, as well as monitoring origin and quality of Chinese crude drugs and Chinese patent medicines (CCDM) through consultation and summarization of relative literatures. On the one hand, NIRS gradually reveals its advantages and discriminating ability in the ways of nondestructive, rapid, simple, easy, and handy assessment. However NIRS still has some problems in representative samples and models stability for practice of CCDM.