Preparation and ElectroOptical Properties of PMMA-5CB Polymer Dispersed Liquid Crystal

Poly(methyl methacrylate)based polymer dispersed liquid crystal (PDLC) materials were prepared by the method of polymerization induced phase separation (PIPS). The phase separation and dispersed states of the PDLC with different 5CB contents were characterized by DSC and POM. The electrooptical properties of the samples were investigated using UV-Vis spectroscopy at 633 nm, 0～30 V. Results showed that when the mass fraction of liquid crystal 5CB was 30% in PDLC, the dispersed states of liquid crystal were wellproportioned, and the variation of transmittance reached the highest value.