TY - JOUR
T1 - Synthesis and characterization of β-CD-coated polystyrene microspheres by γ-ray radiation emulsion polymerization
AU - Xu, Dezhi
AU - Wang, Mozhen
AU - Ge, Xuewu
AU - Lam, Michael Hon-Wah
PY - 2012/11/23
Y1 - 2012/11/23
N2 - 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.
AB - 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.
KW - β-CD
KW - emulsion polymerization
KW - hydrophilic modification
KW - irradiation
KW - polystyrene
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U2 - 10.1002/marc.201200437
DO - 10.1002/marc.201200437
M3 - RGC 21 - Publication in refereed journal
C2 - 22887797
SN - 1022-1336
VL - 33
SP - 1945
EP - 1951
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 22
ER -