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Nano patterned covalent surface modification of poly(e‐caprolactone)
Author(s) -
Edlund Ulrica,
Källrot Martina,
Albertsson AnnChristine
Publication year - 2005
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1560/by1j-cghn-7mf4-qx85
Subject(s) - photoinitiator , chemistry , contact angle , surface modification , grafting , polymer chemistry , wetting , caprolactone , silicone rubber , maleic anhydride , chemical engineering , fourier transform infrared spectroscopy , polymerization , copolymer , polymer , organic chemistry , monomer , engineering
Using our new vapor‐phase grafting technique, we have simultaneously chemically and physically modified the surface of poly(e‐caprolactone) (PCL) films. The substrates were covered with nano patterned silicone rubber stamps and subjected to UV irradiation in the presence of the solvent‐free vapor phase of either N‐vinyl pyrrolidone or maleic anhydride, and a photoinitiator, under reduced pressure. The treated films display a surface pattern of grafted channels of 450‐nm width, as confirmed by AFM and SEM. The grafting was further verified with ATR‐FTIR, and contact angle measurements show an increased wettability of the surfaces.