Premium
Urethane/Siloxane Copolymers with Hydrophobic Properties
Author(s) -
Santiago A.,
González A.,
Iruin J. J.,
FernándezBerridi M. J.,
Muñoz M. E.,
Irusta L.
Publication year - 2012
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201251126
Subject(s) - siloxane , contact angle , materials science , copolymer , isophorone diisocyanate , surface energy , polyurethane , thermosetting polymer , polymer chemistry , trimer , polycaprolactone , composite material , polymer , organic chemistry , chemistry , dimer
Summary: Different composition polyurethane‐siloxane thermoset copolymers obtained from isophorone diisocyanate trimer, poly (caprolactone) triol and hydroxy terminated poly(dimethyl siloxane) were casted over aluminium surfaces. Dynamic mechanical thermal analysis (DMTA) measurements showed that the copolymers presented a phase separated morphology. The water contact angle increased with the siloxane percentage. In addition, for a fixed siloxane percentage, the water contact angle obtained in the air contact generated surface was higher than the one registered in the aluminium contact generated surface, suggesting that the low surface energy siloxane component migrated to the air contact generated surface.