Azobenzene-functionalised core cross-linked star polymers and their host-guest interactions

Shereen Tan, Edgar Hoe Hon Wong, Qiang Fu, Jing M. Ren, Adrian Sulistio, Katharina Ladewig, Anton Blencowe, Greg Qiao

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)


Water-soluble poly(2-hydroxyethyl acrylate) (PHEA)-based core cross-linked star polymers were efficiently synthesised with high macroinitiator-to-star- conversion (>95%) in a one-pot system via single electron transfer-living radical polymerisation. The star polymers display excellent water solubility and the pendant hydroxyl groups provide a platform for facile post- functionalisation with various molecules. In demonstrating this, a photo-isomerisable molecule, 4-(phenylazo)benzoic acid was conjugated onto the preformed stars through partial esterification of the available hydroxyl groups (5-20%). The azobenzene functionalised stars were subsequently employed to form reversible inclusion complexes with α-cyclodextrin.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalAustralian Journal of Chemistry
Issue number1
Publication statusPublished - 2014
Externally publishedYes

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