Abstract
Novel physically crosslinked polyurethane–itaconic acid (PU–I) copolymer hydrogels were synthesized by the macroiniferter-controlled radical polymerization method. The structures of the PU–I copolymer hydrogels were characterized by 1H NMR, FTIR, GPC, and DSC. The water contact angles and self-assembly of the PU–I copolymer hydrogels have been investigated. The results revealed that PU–I copolymer hydrogels have good hydrophilicity, so the water contact angles of polyurethane could be easily adjusted by controlling the content of the hydrophilic vinyl monomers. The PU–I copolymer hydrogels were subjected to solvent-induced self-assembly in THF + water to construct a variety of morphologies. The morphology of the PU–I copolymer hydrogels’ self-assembly was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the mechanism of self-assembly was investigated.
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