期刊
APPLIED SURFACE SCIENCE
卷 253, 期 5, 页码 2978-2983出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2006.06.044
关键词
atomic force microscopy; microphase separation; multiblock copolymer; PEG-MDI-PDMS; surface free energy
A series of poly(ethylene glycol)(PEG)-4,4'-diphenylmethanediisocyanate(MDI)-poly(dimethylsiloxane) (PDMS) multiblock copolymers were synthesized by employing two-step growth polymerization technique. Atomic force microscopy (AFM) observed nanoscopically well-organized phase-separated surfaces consisting of hydrophilic domain from PEG and NIDI segments and hydrophobic domain from PDMS segments even with 50 wt.% PDMS in the copolymer, and the multiblock copolymer coatings presented a surface free energy of as low as 6-8 mN m(-1). (c) 2006 Elsevier B.V. All rights reserved.
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