Intelligent gels and cryogels with entrapped emulsions.
Smart thermoresponsive gels and cryogels with incorporated emulsions have been synthesized and studied. The gels were obtained by three-dimensional copolymerization of N-isopropylacrylamide and N,N'-methylene-bis-acrylamide or N,N'-bis(acryloyl)cystamine in the presence of dispersion of tetradecane stabilized with sodium dodecylsulfate. Polymerization was performed at room temperature and below the water crystallization temperature. Both composite gels and cryogels were capable of heat-induced collapse. The extent of the collapse of the composite gel prepared at room temperature was much smaller and without squeezing of the lipophilic phase out of the shrunk composite gel. In contrast, shrinking of the composite cryogel was accompanied by release of tetradecane emulsion.
Komarova
Galina A
GA
Chair of Physics of Polymers and Crystals, Physics Department, Mowcow State University, Leninsky Gory, Moscow 119992, Russia.
Starodubtsev
Sergey G
SG
Lozinsky
Vladimir I
VI
Kalinina
Elena V
EV
Landfester
Katharina
K
Khokhlov
Alexei R
AR