Compositions for fabricating durable, low-ice-adhesion coatings

A segmented copolymer composition comprising:

• (a) one or more first soft segments selected from fluoropolymers having an average molecular weight from about 500 g/mol to about 10,000 g/mol, wherein said fluoropolymers contain an oxygen atom connected to two alkyl or aryl groups, wherein at least one hydrogen atom of said alkyl or aryl group is replaced by a fluorine atom, and wherein said fluoropolymers are (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated;
• (b) one or more second soft segments selected from polyesters or polyethers, wherein said polyesters or polyethers are selected from the group consisting of poly(oxymethylene), poly(ethylene glycol), poly(propylene glycol), poly(glycolic acid), poly(caprolactone), poly(ethylene adipate), poly(hydroxybutyrate), poly(hydroxyalkanoate), and combinations thereof, and wherein said polyesters or polyethers are (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated;
• (c) one or more hard segments containing a reacted form of one or more isocyanate species possessing an isocyanate functionality of 2 or greater;
• and
• (d) in said hard segments, a reacted form of one or more polyol or polyamine chain extenders or crosslinkers,
• wherein said first soft segments and said second soft segments are covalently connected with each other,
• wherein said first soft segments and said second soft segments are microphase-separated on an average microphase-separation length scale that is greater than 0.2 microns to about 100 microns, and
• wherein said segmented copolymer composition has a glass-transition temperature above −80° C.