电化学诱导表面引发原子转移自由基聚合构筑离子型聚醚砜膜功能表面

doi:10.11896/j.issn.1005-023X.2018.04.008

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Abstract The polymer brushes of poly(sodium p-styrenesulfonate hydrate) was introduced onto polyethersulfone membrane by coating poly(dopamine) and grafting poly(sodium p-styrenesulfonate hydrate) via surface-initiated electrochemical-mediated atom transfer radical polymerization(SI-eATRP), and the monomer concentration was used to adjust the amount of polymer brush. The structure and properties of the modified membrane were characterized by SEM, AFM, XPS, and water contact angle, and the filtration performance was measured by water flux. The results showed that poly(sodium p-styrenesulfonate hydrate) chains were successfully grafted onto the membrane surface, and polymer brushes were tangled to form spherical particles. With the increase of monomer concentration in the electrochemical induced system, the amount of grafting polymer brush increased, thus the water contact angle decreased significantly. The hydrophilicity of the ionic membrane improved, which contributed to the obvious increase of water flux. The BSA rejection rate and flux recovery rate performance have been improved. SI-eATRP method used for surface modification and regulation of polymer film materials has potential application prospects in biocompatible membranes.

Key words： polymer membrane surface modification surface-initiated electrochemical-mediated atom transfer radical polymerization polymer brushes polymer blend

Published: 25 February 2018

CLC number:	TB342
	TQ316.3

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	Articles by authors
	WU Jiayu
	LI Dan
	KANG Long
	RAN Fen

Cite this article:

WU Jiayu,LI Dan,KANG Long, et al. Construction of Ion-type Functional Surface of Polyethersulfone Membrane via Surface-initiated Electrochemical-mediated Atom Transfer Radical Polymerization(SI-eATRP)[J]. Materials Reports, 2018, 32(4): 549-554.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.04.008 OR http://www.mater-rep.com/EN/Y2018/V32/I4/549

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