Molecular weight dependence of aggregation structure and electro-optical properties of polymer/liquid crystal composite films

Hwan Kyeong Jeong, Noh Hee Jeong, Ki Dae Nam, Hirotsugu Kikuchi, Tisato Kajiyama

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The relationship between the polymer molecular weight and the electro-optical properties was investigated for the polymer/liquid crystal (LC) composite film prepared by a solvent-induced phase separation method. Poly(methyl methacrylate) (PMMA) and poly(diisopropyl fumarate) (Pdi-iPF) with significantly different weight-average molecular weight (Mw) were used as the matrix for the Polymer/LC composite film. It is confirmed from morphological observation by scanning electron microscope (SEM) that the size of LC channel or domain was strongly dependent on Mw of PMMA and Pdi-ipF. With increasing Mw in PMMA/LC composite film, the switching hysteresis was decreased due to a decrease of the compatibility at the polymer-LC interface. The hysteresis in (Pdi-iPF/LC) composite film was not detected for electro-optical switching and this result is not changed with Mw of Pdi-iPF.

Original languageEnglish
Pages (from-to)251-257
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
Volume4
Issue number3
Publication statusPublished - 1998

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Molecular weight dependence of aggregation structure and electro-optical properties of polymer/liquid crystal composite films'. Together they form a unique fingerprint.

Cite this