A low-ice-adhesion composition comprising a composite material containing at least a first-material phase and a second-material phase that is chemically distinct from said first-material phase, wherein said first-material phase and said second-material phase are nanophase-separated on an average nanophase-separation length scale from about 10 nanometers to less than 100 nanometers, wherein said first-material phase and said second-material phase further are microphase-separated on an average microphase-separation length scale that is from about 0.1 microns to about 100 microns and is hierarchically distinct from said nanophase-separation length scale, wherein said composite material has a glass-transition temperature above -80°C, wherein said composite material is a polymer, wherein said first-material phase and said second-material phase are covalently connected in a block copolymer, wherein said block copolymer is 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 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 (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated; (c) one or more isocyanate species, or a reacted form thereof, possessing an isocyanate functionality of 2 or greater; and (d) one or more polyol or polyamine chain extenders or crosslinkers, or a reacted form thereof, and wherein at least one of the one or more polyol or polyamine chain extenders or crosslinkers is selected from the group consisting of 1,3-butanediol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, neopentyl glycol, 1,6-hexanediol, 1,4-cyclohexanedimethanol, ethanol amine, diethanol amine, methyldiethanolamine, phenyldiethanolamine, 1,2,6-hexanetriol, triethanolamine, pentaerythritol, 1,3-propanediamine, 1,4-butanediamine, diethyltoluenediamine, dimethylthiotoluenediamine, N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine, and homologues, derivatives, or combinations thereof. (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 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 (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated; (c) one or more isocyanate species, or a reacted form thereof, possessing an isocyanate functionality of 2 or greater; and (d) one or more polyol or polyamine chain extenders or crosslinkers, or a reacted form thereof, and wherein at least one of the one or more polyol or polyamine chain extenders or crosslinkers is selected from the group consisting of 1,3-butanediol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, neopentyl glycol, 1,6-hexanediol, 1,4-cyclohexanedimethanol, ethanol amine, diethanol amine, methyldiethanolamine, phenyldiethanolamine, 1,2,6-hexanetriol, triethanolamine, pentaerythritol, 1,3-propanediamine, 1,4-butanediamine, diethyltoluenediamine, dimethylthiotoluenediamine, N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine, and homologues, derivatives, or combinations thereof.