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Encapsulation of Pigment Using Natural Polysaccharides

机译：使用天然多糖封装颜料

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With a view to developing UV curable systems from renewable biocompatible raw materials, the present work deals with the encapsulation of pigments with polysaccharide derivatives that can undergo crosslinking upon exposure to UV radiation. Maleate ester derivatives were prepared in anhydrous conditions using maleic anhydride in the presence of pyridine. Encapsulation of the pigment core in the prepared UV curable systems occurred by applying the prepared guar derivative as a shell material in a UV curable formulation that can be induced by a photoinitiator. Encapsulation is done by the o/w/o miniemulsion polymerization technique. In another approach, and for the sake of comparison, microencapsulation was performed via chemical crosslinking of the prepared guar maleate derivative in a W/O emulsion. The resultant nanocapsules were characterized using FTIR, DSC, and SEM. The nanocapsules were spherical with average particle size of 100 nm.
机译：为了从可再生的生物相容性原料开发UV可固化系统，本作工作涉及具有多糖衍生物的颜料的封装，可以在暴露于UV辐射时进行交联。在吡啶存在下使用马来酸酐在无水条件下在无水条件下制备马来酸酯衍生物。通过在可以通过光引发剂诱导的UV可固化制剂中施加制备的UV可固化系统中的颜料芯的封装发生的uV可固化系统中的颜料核心。封装通过O / W / O微量乳液聚合技术完成。在另一种方法中，为了比较，通过在W / O乳液中的制备的瓜尔马来酸盐衍生物的化学交联进行微胶囊。使用FTIR，DSC和SEM表征所得纳米胶囊。纳米胶囊是球形，平均粒径为100nm。

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