Preparation and chiroptical properties of a regioselectively substituted cellulose ether with PEO side chains

Zhilian Yue, J. M G Cowie

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A novel regioselectively substituted cellulose ether with poly(ethylene oxide) (PEO) side chains, 6-O-trityl-2,3-O-PEOcellulose (TPEOCELL), was synthesized and characterized. The polymer is a thermotropic liquid crystalline material and forms a right-handed chiral nematic phase which reflects visible light at room temperature. The effect of salt on its cholesteric liquid crystallinity was investigated with CD spectroscopy. It has been found that adding small amounts of LiCF3SO3 to TPEOCELL ([Li]/[O] < 0.0145) causes a significant untwisting of the cholesteric structure. The effects of other salts on the cholesteric properties of TPEOCELL were also examined.

Original languageEnglish
Pages (from-to)6572-6577
Number of pages6
JournalMacromolecules
Volume35
Issue number17
DOIs
Publication statusPublished - 13 Aug 2002

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