LC alignment effect on a novel photo-crosslinkable polyitaconimide with a cinnamoyl group connected to a hexylene group

Jeong Yeon Hwang, K. I.Hyung Nam, Dae Shik Seo, Sang Min Lee, Dong Hack Suh

Research output: Contribution to journalConference article

Abstract

In this paper, we synthesized a new photo-crosslinkable polyitaconimide containing a cinnamoyl moietys by radical polymerization. Also, the nematic liquid crystal (NLC) aliging capabilities on these photopolymer surfaces and the EO performances in the photoaligned TN-LCD by photoalignment method were studied. The good LC alignment can be obtained with UV exposure on the polyitaconimide surfaces. The homeotripic alignment using UV exposure for short time was observed on polyitaconimide with a cinnamoyl group connected to a hexylene group. However, The homogenous alignment can be obtained using UV exposure for long time on the polyitaconimide surface. We can consider that the LC aligning ability on the polyitaconimide depends on intensity of UV exposure on the photopolymer surface. Also, good V-T curves and response time can be achieved by UV exposure on the photopolymer surface for 1 min.

Original languageEnglish
Pages (from-to)[197]/53-[205]/61
JournalFerroelectrics
Volume309-312
DOIs
Publication statusPublished - 2004 Dec 1
Event9th International Conference on Ferroelectric Liquid Crystals, FLC 2003 - Dublin, Ireland
Duration: 2003 Aug 242003 Aug 29

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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