【作者】 王丹；

【导师】 于钢； 谭文英；

【作者基本信息】 东北林业大学 ， 林产化学加工工程， 2003， 硕士

【摘要】 本文对以松香为原料，界面聚合法制备微囊的工艺进行了研究，制定了工艺路线和流程，确定了松香改性反应的最佳反应条件和微囊化过程中最佳的乳化条件、成囊条件及最佳芯壁比。首先，原料松香与富马酸发生Diels-Alder双烯合成反应，分离得到分子中含有三个羧基的富马海松酸，用过量亚硫酰氯使富马海松酸发生酰氯化反应，制得富马海松酸酰氯；然后，以富马海松酸酰氯作为油溶性单体，溶于邻苯二甲酸二丁酯并分散在NaHCO₃水溶液中，形成稳定的O-W乳化体系，当加入水溶性单体二乙烯三胺时，两种单体在两相界面发生缩聚反应，生成立体网状结构的高分子聚合物囊壳，形成包油微囊。实验表明，以松香为原料通过界面聚合法制备微囊是可行的，而且这种制备微囊的工艺方便、简单，反应速度快，效果好，不需要昂贵复杂的设备，可以在常温下进行，避免了由于要求严格控制温度给操作带来的困难。更多还原

【Abstract】 In this thesis, the technics of microcapsule production by interfacial polymerization with rosin as the row material was studied. The craft route and process were formulated. The best condition of rosin modification, the best condition of emulsification, microencapsulation and the best ratio of core to wall of microcapsule were established.First, the Diels-Alder reaction of rosin with fumaric acid yields fumaric rosin, from which fumaropimaric acid with three hydroxyls can be refined. Fumaropimaric acid is chloridated to fumaropimaric acid chloride by SOCl2. Then, fumaropimaric acid chloride dissolved in dibutyl(o-)phthalate, the oil solution dispersed in aquatic solution of NaHCO3 and formed a steady emulsion. When diethylen etriamine is added in the emulsion, interfacial polymerization takes place at the interface of two phases, then tridimensional and reticulate polymer wall is produced, and the oil is enveloped in microcapsule. The experiments indicate that microcapsule production by interfacial polymerization with rosin as the row material is feasible. In addition, this microencapsulation technics is convenient and simple without costly and complicated apparatus and the reaction takes place under normal temperature, which avoids the trouble of rigorous controll on temperature.更多还原