Synthesis and characterization of side chain liquid crystalline polysiloxanes with oligooxyethylene spacer

Chang Jyh Hsieh*, Chain-Shu Hsu, Ging Ho Hsiue

*Corresponding author for this work

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

The goal of this study is to present the synthesis and characterization of a series of side-chain liquid crystalline polymers containing different number of oxyethylene units as spacer. The obtained polymers are characterized by DSC and polarizing optical microscope. Their phase behavior will be discussed as function of spacer length so as to understand the role of spacer on the properties of mesophases of side-chain liquid crystalline polymers. Experimental data indicate that the nature of spacer plays a very important role in a side-chain liquid crystalline polymer. The glass transition temperature of a side-chain liquid crystalline polymer decreases as number of oxyethylene unit of spacer increases. This means that the motion of a mesogen will be less affected by the polymer backbone when we put more oxyethylene units on the spacer.

Original languageEnglish
Pages (from-to)1014-1018
Number of pages5
JournalPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
Volume59
StatePublished - 1 Dec 1988
EventProceedings of the ACS Division of Polymeric Materials: Science and Engineering - Fall Meeting - Los Angeles, CA, USA
Duration: 26 Sep 198830 Sep 1988

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