P(NIPAM-co-OVSGal) thermosensitive microgels were synthesized by combination of enzymatic reaction and soap-free emulsion polymerization.FT-IR and 1H-NMR were used to analysis the structure and composition of microgels.UV-visible spectroscopy test showed that the low critical solution temperature (LSCT) of microgels was 33.4℃.Measurements by light scattering technology (LLS/DLS) and transmission electron microscope (TEM) aimed to researched volume phase transformation behavior and it turned out that microgels were uniformly dispersed sphere,Rh and Rg both decreased as the temperature increased,and process of volume phase transformation was continuous.
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