Patterning dewetting in thin polymer films by spatially directed photocrosslinking.

Content Provider	Semantic Scholar
Author	Carroll, Gregory T. Turro, Nicholas J. Koberstein, Jeffrey T.
Copyright Year	2010
Abstract	In this report we examine the dewetting of spin-cast poly (styrene) films in a confined geometry. We designed a platform for laterally confining PS by photo-patterning crosslinks in spin-coated thin films. Heating the patterned film above the glass transition temperature of PS results in localized dewetting patterns in regions that were not crosslinked, while the crosslinked pattern serves as a rigid barrier that confines the retraction of the uncrosslinked polymer in micron-sized domains. The barriers also provide a favorable surface that the liquid PS wets onto, forming a rim at the boundary of crosslinked and uncrosslinked polymer. The resulting patterns are shown to be dependent on the irradiation and annealing time, the dimensions of the uncrosslinked region and the thickness of the film.
File Format	PDF HTM / HTML
DOI	10.1016/j.jcis.2010.07.070
Alternate Webpage(s)	http://turroserver.chem.columbia.edu/pdf_db/publications_901_950/njt928.pdf?origin=publication_detail
PubMed reference number	20728089
Alternate Webpage(s)	https://doi.org/10.1016/j.jcis.2010.07.070
Journal	Medline
Volume Number	351
Issue Number	2
Journal	Journal of colloid and interface science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article