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Humidity‐responsive polymeric films based on AOT‐water reverse microemulsions
Author(s) -
Marszalek Jolanta E.,
Pojman John A.,
Aultman Kayce Leard,
Hoyle Charles E.,
Whitehead Joe B.
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26701
Subject(s) - photopolymer , microemulsion , materials science , aqueous solution , acrylate , polymerization , chemical engineering , polymer chemistry , relative humidity , opacity , polymer , phase (matter) , nanometre , monomer , composite material , chemistry , pulmonary surfactant , organic chemistry , optics , physics , engineering , thermodynamics
Hydrophobic polymer films, having an aqueous phase distributed throughout the matrix, were formed by polymerizing a solution of dodecyl acrylate and 1,6 hexanediol diacrylate containing nanometer‐sized drops of water stabilized by sodium bis(2‐ethylhexyl) sulfosuccinate (AOT). Photopolymerization‐induced aggregation of the water drops and/or phase separation occurred, as the initially clear solutions became opaque films. The polymerized films became clear, as the relative humidity was reduced. Clear films still contained 20–50% of the initial water. The transition from opaque to clear films was reversible provided that the film did not become completely dry and form cracks. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007