Salunke, N.
, Nallapaneni, A.
, Yuan, G.
, Stafford, C.
, Niu, H.
, Shawkey, M.
, Weiss, R.
and Karim, A.
(2017),
Film Confinement Induced "Jump-Percolation" Wetting Transition in Amphiphilic Block Copolymer Films, ACS Applied Materials and Interfaces, [online], https://doi.org/10.1021/acsami.7b07245, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=923245
(Accessed April 23, 2024)
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Film Confinement Induced "Jump-Percolation" Wetting Transition in Amphiphilic Block Copolymer Films
Published
Author(s)
Namrata Salunke, Asritha Nallapaneni, , , Hui Niu, Matthew D. Shawkey, R. A. Weiss, Alamgir Karim
Abstract
A sharp surface wettability transition with varying film thickness dependent morphology was observed in cast films of an amphiphilic triblock copolymer comprised of poly(2-(N-ethylperfluotooctanesulfonamido) ethyl methylacrylate), poly(FOSM), and poly(N,N'-dimethylacrylamide), poly(DMA). Films with thickness (h) in the range, 200 nm c ''6 ° to 40 ° in 3-4 s. Relatively shallow decreasing water contact angle (θw) gradients were observed around this transitional film thickness for films in the overall range of 40 nmCitation
ACS Applied Materials and Interfaces
Volume
9
Issue
40
Pub Type
Journals
Download Paper
Keywords
block copolymer film, hydrophobic to hydrophilic transition
Citation
Created September 30, 2017, Updated October 12, 2021