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- Title
Synthesis and Characterization of β-CD-Coated Polystyrene Microspheres by γ-Ray Radiation Emulsion Polymerization.
- Authors
Xu, Dezhi; Wang, Mozhen; Ge, Xuewu; Lam, Michael Hon-Wah
- Abstract
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.
- Publication
Macromolecular Rapid Communications, 2012, Vol 33, Issue 22, p1945
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201200437