| 1 | Preparation and reducing-responsive property of a novel functional polyurethane nanoemulsion显示文摘As a kind of stimuli-responsive materials,the disulfide-containing material has received a tremendous amount of interest.A novel functional disulfide-containing waterborne polyurethane(DS-WPU)nanoemulsion was prepared via a one-step in situ phase inverse emulsification technique and its reducing-responsive prope rty was investigated using dithiothreitol as the reductant.Results showed that the DS-WPU nanoemulsion had a uniform particle size in nanoscale and a good film-forming characteristic,and the DS-WPU latex film exhibited great responsiveness along with a self-assembled behavior in the reducing environment to form WPU emulsion again,including a long-to-short process of the polymer chains. | He Qin Hong Zhang Xiaoteng Zhou Danfei Gu Lingxiao Li Chengyou Kan | 2020 | Chinese Chemical Letters2020，31，1： | 0 |
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