中文摘要：

利用昆虫雌性激素对昆虫进行干扰交配是近年来使用的一种新技术，可替代农药杀虫剂达到高选择性无毒无药灭害的目的，鉴于十二醇（C12H25OH）与简单的昆虫激素化合物十二碳烯醇、十二碳烯二醇等结构相近，使用C12H25OH作为昆虫激素的模拟物，探索使用聚合物微球水分散体系将昆虫激素模拟物C12H25OH包覆在聚合物微球中，通过改变水分散体系的制备方法、复合微球壁的交联度等探讨了此类体系对C12H25OH的可控释放．首先通过测定阿拉伯胶明胶复凝聚过程的透光率、ζ电位，确定了阿拉伯胶-明胶的质量配比为1时可达最大复凝聚．在此基础上，制备了一系列交联剂戊二醛含量不同的复合微胶囊．结果表明微胶囊壁材的交联度随交联剂量明显上升，其对C12H25OH的包覆率经1％戊二醛交联后即提高至未交联体系的约三倍．但进一步提高戊二醛的含量，虽然胶囊的交联度仍明显上升，但对C12H25OH的包覆率基本保持恒定．使用同样量的甲醛可达同样交联效果，但对C12H25OH的包覆率有明显提高．在恒温恒湿条件下对各胶囊的C12H25OH释放行为进行了表征，结果显示交联胶囊可明显提高C12H25OH的恒速释放时间，交联度越高，恒速释放越稳定．本工作表明通过本方法确实可以达到将昆虫激素包覆在聚合物颗粒中并达到可控释放。

英文摘要：

Using female pheromone of insects to disrupt their mating process is a new technology, which has been applied as environment friendly pesticides in agricultural and forestry industries to control pest infestation. Because structural similarity of dodecanol with simple pheromone molecules such as dodecenyl alcohol and dodecadienol, dodecanol was chosen as a pheromone simulacrum and encapsulated as core material by a polymer through coacervation in water. Through variations in capsule preparation conditions and crosslinking density of the polymer wall materials, release controllability of dodecanol was studied. In a first step, maximal coacervation ratio of acacia gum and gelatin was determined at unity by measuring transmittance and ζ potential in the coacervation process. A series of dodecanol-polymer capsules with different crosslinking density using glutaraldehyde as crosslinking agent were prepared. Experimental results indicate that wall polymer density was significantly increased with glutaraldehyde content. Encapsulation rate of dodecanol was tripled in capsules with 1% by weight of glutaraldehyde compared with those without glutaraldehyde. Further increase in glataraldehyde led to higher crosslinking, however, dodecanol encapsulation remained relatively constant. When formaldehyde was used instead of glutaraldehyde, similar crosslinking was achieved with higher dodecanol encapsulation than that with glutaraldehyde. Release of dodecanol was then tested under constant temperature and relative humidity, showing that an extended constant release was obtained in crosslinked capsules; the higher the crosslinking density, the longer the period of dodecaol constant release. This work demonstrates that insect pheromone encapsulation can be well achieved through complex coacervation, and controlled release of dodecanol could be obtained.