Synthesis and characterization of β-CD-coated polystyrene microspheres by γ-ray radiation emulsion polymerization

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Original languageEnglish
Pages (from-to)1945-1951
Journal / PublicationMacromolecular Rapid Communications
Issue number22
Publication statusPublished - 23 Nov 2012


Polystyrene (PS) microspheres coated with β-cyclodextrin (β-CD) were fabricated via γ-ray-induced emulsion polymerization in a ternary system of styrene/β-CD/water (St/β-CD/water). The solid inclusion complex of St and β-CD particles formed at the St droplets-water interface can stabilize the emulsion as the surfactant. TEM and XPS results showed that β-CD remains on the surface of PS particles. The average size of the PS particles increases from 186 to 294 nm as the weight ratio of β-CD to St rises from 5% to 12.5%. The water contact angle (CA) of PS latex film is lower than 90°, and reduces with the β-CD content even to 36°. Thus, this work provides a new and one-pot strategy to surface hydrophilic modification on hydrophobic polymer particles with cyclodextrins through radiation emulsion polymerization. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • β-CD, emulsion polymerization, hydrophilic modification, irradiation, polystyrene