In:
Journal of Polymer Science Part A: Polymer Chemistry, Wiley, Vol. 54, No. 24 ( 2016-12-15), p. 3868-3877
Abstract:
In this work, a series of block copolymers of poly(2,2,3,4,4,4‐hexafluorobutyl methacrylate)‐block‐poly[2‐(dimethylamino)ethyl methacrylate] (PHFBMA‐b‐PDMAEMA) were synthesized via photo‐induced atom transfer radical polymerization (photoATRP) at room temperature. By the introduction of PDMAEMA segment, the hydrophilicity of the silicon wafer surface spin‐coated with PHFBMA homopolymer was improved. Furthermore, the study of tunable surface wettability showed that the surface wettability was pH‐dependent and thermal‐independent at pH 2 and 10. The as‐fabricated surface coated with PHFBMA 110 ‐ b ‐PDMAEMA 187 showed switchable water contact angle from 85.4° at pH 〉 4 to 55.0° at pH 2 due to the protonation and deprotonation of tertiary amine groups of PDMAEMA. However, because of the ascendancy of protonated PDMAEMA at pH 2 and the decreased LCST at pH 10, the wettability of the as‐prepared surfaces was thermal‐insensitive. Finally, surface morphology and composition investigation showed that the property of wettability‐controllable surface was not only influenced by surface composition, but also affected by chain conformation. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016 , 54 , 3868–3877
Type of Medium:
Online Resource
ISSN:
0887-624X
,
1099-0518
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
3004641-5
detail.hit.zdb_id:
1473076-5
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