Temperature Controlled Water/Oil Wettability of a Surface Fabricated by a Block Copolymer: Application as a Dual Water/Oil On-Off Switch

A temperature controlled dual water/oil on–off switch is achieved by using a PMMA‐b‐PNIPAAm block‐copolymer coated mesh, determined by the conformational change of the PNIPAAm chain around the lower critical solution temperature (LCST) and also the cooperation between PNIPAAm and PMMA. Water can per...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2013-01, Vol.25 (2), p.273-277
Main Authors: Xue, Baolong, Gao, Longcheng, Hou, Yongping, Liu, Zhiwen, Jiang, Lei
Format: Article
Language:English
Subjects:
block copolymer
Block copolymers
Blocking
Chains
Controlled atmospheres
Cooperation
Molecular Structure
Oils - chemistry
Particle Size
PNIPAAm
Polymers - chemistry
Polymethyl methacrylates
Surface Properties
Switches
Temperature
temperature controlled
Water - chemistry
water/oil on-off switch
Wettability
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Summary:A temperature controlled dual water/oil on–off switch is achieved by using a PMMA‐b‐PNIPAAm block‐copolymer coated mesh, determined by the conformational change of the PNIPAAm chain around the lower critical solution temperature (LCST) and also the cooperation between PNIPAAm and PMMA. Water can permeate through the BCP‐coated mesh, and oil cannot below the LCST, whereas oil can and water cannot above the LCST.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201202799