Alcohol-responsive, hydrogen-bonded, cholesteric liquid-crystal networks

Chin Kai Chang, Cees M.W. Bastiaansen, Dirk J. Broer, Hui Lung Kuo

研究成果: Article同行評審

51 引文 斯高帕斯(Scopus)

摘要

Hydrogen-bridged, cholesteric liquid-crystal (CLC) polymer networks are adopted as an optical sensor material to distinguish between ethanol and methanol. Fast uptake of the alcohols is facilitated by an incorporated porosity created by breaking the hydrogen bridges and by a previously removed non-reactive liquid-crystal agent. The discrimination between the alcohols is based on the diversity in molecular affinity of ethanol and methanol with the hydrogen-bridged CLC polymer networks. The CLC networks are molecular-helix- based, one-dimensional bandgap materials with a discrete reflection band in the visible part of the spectrum that depends on the pitch of the molecular helix. The changes in positions of the reflection bands of the CLC network accurately discriminate between the alcohol types and provide information on their ratio in case they are blended.

原文English
頁(從 - 到)2855-2859
頁數5
期刊Advanced Functional Materials
22
發行號13
DOIs
出版狀態Published - 2012 7月 10

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學

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