Alignments of Reactive Mesogen Using Rubbed Glass Substrates

Abstract

Alignments of photo-reactive mesogen were induced using bare glass substrates without a polymer alignment layer. It was found by using polarized FTIR spectroscopy, polarized microscopy, and birefringence measurement experiments that the reactive mesogen could be aligned along the rubbing direction although the glass substrate without an alignment layer was used. The induction mechanism of the rubbed bare glass is ascribed to that polymers from rubbing clothes are coated on the glass substrate along the rubbing direction and lead the alignment of liquid crystals through intermolecular interactions.

Enhanced, parallel liquid crystal alignment based on polystyrene substituted with phthalimidoyl groups

“…3 Recently, reactive mesogens (RMs) containing reactive groups as well as core, linkage, terminal, and lateral groups have been widely studied. [4][5][6][7] The chemical reaction between RM reactive groups solidies the LC materials to form a polymer, which can be used in many diverse lms and devices for various applications. RMs have been widely used for non-display application and as compensation lms and micro-lenses in various displays.…”

Numerical Simulation on the Enhanced Mixing of Polymer Melt by Single Screw with Torsion Elements in the Homogenizing Section

“…In both extrusion and injection molding, the homogeneity of polymer melt is determined for the quality of product, 1,2 thus various of screw geometries [3][4][5] and mixing elements 6,7 have been designed to improve the homogeneity of polymer melt. Mixing contributes to mass transfer, distributes physical property of ingredients more uniform including temperature, viscosity, etc.…”