Preparation of multi-responsive amphiphilic particles by one-step soapless emulsion polymerization |
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Authors: | Bin Wang Wenzhong Zhai Rong-Min Wang Xuling Wei Pengfei Song Yufeng He |
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Affiliation: | 1.Key Lab Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,China |
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Abstract: | A novel multi-responsive amphiphilic copolymer (mRAP) particles with tunable emulsifiability was successfully prepared via one-step soapless emulsion polymerization using common monomers, such as methyl methacrylate, methacrylic acid (MAA), butyl acrylate (BA) and N,N-diethylacrylamide (DEAA). The obtained monodisperse spherical mRAP particles were characterized by dynamic light scattering, Fourier transform infrared spectroscopy, scanning electron microscope and transmission electron microscope, which provided the information of particle size, components and anisotropic structure. Its multiple responsivities were investigated under the condition of diversified pH values, salinity and temperature. The results showed that the mRAP particles exhibited good dispersivity based on uniform particle size, as well as tunable emulsifiability and anticipated multiple responsiveness. Furthermore, the tunable emulsifiability of oil–water mixtures could be easily achieved by adjusting the mass ratios of MAA to DEAA. Meanwhile, the obtained multi-responsive polymers relying on simple and effective copolymerization can be used in fundamental research and industrial production. |
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