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Fabrication of Durable Honeycomb‐Patterned Films of Poly(ether sulfone)s via Breath Figures
Author(s) -
Liu Yuanyuan,
Ma Hengyu,
Tian Ye,
Xie Fucheng,
Wang Xiaolin
Publication year - 2014
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201400137
Subject(s) - copolymer , materials science , sulfone , dichloromethane , casting , polymer chemistry , solvent , amphiphile , styrene , chemical engineering , honeycomb , ether , composite material , polymer , organic chemistry , chemistry , engineering
Honeycomb‐patterned porous films of poly(ether sulfone) (PES) are prepared via breath figures (BF), in which dichloromethane (DCM) is used as the solvent, although the solubility of PES in DCM is relatively low. It is found that the use of a DCM suspension of PES as the casting solution and the addition of an amphiphilic block copolymer, poly(styrene‐ co ‐maleic acid) partial isobutyl ester (PSME), assist the stabilization of water‐droplet arrays during the BF process, contributing to improved pattern regularity, and finally leading to the formation of highly ordered honeycomb‐patterned films of PES. A synergetic effect of concentration and humidity on the film morphology is discovered and systematically investigated. Moreover, the resultant films possess enhanced resistance to strong acid and base solutions under heating, indicating their promising applications under harsh conditions.