A stable PEO-tethered PDMS surface having controllable wetting property by a swelling-deswelling process

Soft Matter
Kai Yu, Yanchun Han

Abstract

A PEO-tethered layer on a PDMS (polydimethylsiloxane) cross-linked network has been prepared by a swelling-deswelling process. During swelling, the PDMS block of a PDMS-b-PEO diblock copolymer penetrates into the PDMS substrate and interacts with PDMS chains because of the van der Waals force and hydrophobic interaction between them. Upon deswelling, the PDMS block is trapped in the PDMS matrix while the PEO, as a hydrophilic block, is tethered to the surface. The PEO-tethered layer showed stability when treated in water for 16 h. The surface fraction of PEO and the wetting property of the PEO-tethered PDMS surface can be controlled by the cross linking density of the PDMS matrix. A patterned PEO-tethered layer on a PDMS network was also created by microcontact printing and water condensation figures (CFs) were used to study the patterned surface with different wetting properties.

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Citations

Jul 27, 2007·Angewandte Chemie·Maaike L van PollWilhelm T S Huck
Oct 27, 2011·Advanced Materials·Yuzhe DingTingrui Pan
Nov 19, 2013·Nanoscale·Audrey BeaussartYves F Dufrêne
Jan 30, 2010·Chemical Society Reviews·Jilin Zhang, Yanchun Han
Aug 11, 2018·Biointerphases·Irini SotiriCaitlin Howell
Jul 3, 2010·Lab on a Chip·Peter B LillehojChih-Ming Ho
Dec 4, 2020·Acta Biomaterialia·Manuel Quiñones-PérezMaribella Domenech
Jan 23, 2021·Soft Matter·Alexander GreinerSilvia Budday
Jan 10, 2017·ACS Applied Materials & Interfaces·Yuchen ZhouJulia A Kornfield
Apr 30, 2014·ACS Applied Materials & Interfaces·Tianqing LiuBenjamin Thierry
Aug 29, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Koceïla DoufèneAnne Aubert-Pouëssel

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