Photoresponsive nanoporous smectic liquid crystalline polymer networks : changing the number of binding sites and pore dimensions in polymer adsorbents by light

H.P.C. Kuringen, van, Z.J.W.A. Leijten, A.H. Gelebart, D.J. Mulder, G. Portale, D.J. Broer, A.P.H.J. Schenning

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)
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Abstract

Photoresponsive nanoporous polymer films have been fabricated by adding a photoresponsive azobenzene cross-linker to a hydrogen-bonded smectic liquid crystalline polymer network. A base treatment resulted in the nanoporous material which has been fully characterized. Upon exposure to UV light a decrease in the smectic layer spacing is observed, suggesting a decrease in pore size. In addition, the binding sites in the material could be changed with light, leading to light-induced adsorption of cations and cationic dyes. Finally, light could also be used to create nanoporous channels in the polymer film.
Original languageEnglish
Pages (from-to)4073-4080
Number of pages8
JournalMacromolecules
Volume48
Issue number12
DOIs
Publication statusPublished - 2015

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