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《Acta Materiae Compositae Sinica》 2017-01
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Preparation and characterization of n-dodecanol microcapsules in poly(methyl methacrylate)

SONG Xiaoqiu;CAO Longdi;YE Lin;Shanghai Institute of Technology,School of Perfume and Aroma Technology;  
The N-dodecanol-polymethyl-metharylate(DA@PMMA)microcapsules were prepared by suspension polymerization method with n-dodecanol(DA)as core material and polymethyl-metharylate(PMMA)as outer shell.Microcapsules were characterized by differential scanning calorimetry(DSC),scanning electron microscopy(SEM),transmission electron microscopy(TEM),fourier transform infrared spectroscopy(FTIR)and thermal gravimetric analysis(TGA),et al.The results show that the best conditions for preparation of DA@PMMA microcapsules are:Sodium salt of styrene-maleic anhydride polymer(SMA)content is 7.5% to DA,2,2-azobisisobutyronitrile(AIBN)content is 7.5%to methyl methacrylate(MMA),the core/shell mass ratio is 2∶1,stirring speed is 1 000r/min.DA@PMMA microcapsules are sphericalthe average particle size of DA@PMMA microcapsules is26μm.The mass fraction of DA in DA@PMMA microcapsules is nearly 66% and the latent heats of melting and freezing are found to be 137.6J/g and 132.8J/g.TGA and FIIR analyses also indicate that DA@PMMA microcapsules have good stability.
【Fund】: 上海市“联盟计划”(LM201528)
【CateGory Index】: TB34
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