Facile control of thermo-responsive wettability through an all-electrostatic self-assembling process
SCIE
SCOPUS
- Title
- Facile control of thermo-responsive wettability through an all-electrostatic self-assembling process
- Authors
- Kwak, D; Han, JT; Lee, JH; Lim, HS; Lee, DH; Cho, K
- Date Issued
- 2008-10-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- We describe the facile fabrication of a thermo-responsive wetting surface through an electrostatic assembly process and the use of thermo-responsive polyelectrolyte copolymers. The organic-inorganic nano-structured films were prepared through the layer-by-layer assembly of negatively charged silica nanoparticles (11 nm) and positively charged poly(allylamine hydrochloride) (PAH). The thermo-responsive polyelectrolyte copolymer, poly(allylamine hydrochloride)-g-poly(N-isopropylacrylamide) (PAH-g-PNIPAAm), was synthesized by grafting a carboxylic end group of PNIPAAm on to the PAH. The nanostructured surfaces modified with PAH-g-PNIPAAm exhibit enhanced thermal switching of surface wettability. Our approach provides a versatile strategy for control over the thermo-responsive wettability of substrates with complex structures for various applications such as sensors, microfluidics, etc. (C) 2008 Elsevier B.V. All rights reserved.
- Keywords
- Thermo-responsive wettability; Layer-by-layer assembly; Poly(N-isopropylacrylamide) copolymer; POLY N-ISOPROPYLACRYLAMIDE; NANOSTRUCTURED SURFACES; FILMS; POLY(N-ISOPROPYLACRYLAMIDE); TRANSITION; WATER; SUPERHYDROPHILICITY; SUPERHYDROPHOBICITY; POLYELECTROLYTES; TOPOGRAPHY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22412
- DOI
- 10.1016/j.susc.2008.07.044
- ISSN
- 0039-6028
- Article Type
- Article
- Citation
- SURFACE SCIENCE, vol. 602, no. 19, page. 3100 - 3105, 2008-10-01
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