【摘要】 提出将先降解剂微胶囊化的设想，并依此选择交联聚苯乙烯为壁材，二苯甲酮为芯材，利用原位聚合法合成了微胶囊化光降解剂.采用FTIR、先学显微镜对该微胶囊的组成和微观形态进行了表征.并对二苯甲酮用量对聚合的影响及微胶囊粒径的控制因素进行了探讨.更多还原

【Abstract】 This paper presents a new concept of″microencapsulated photo-degradant″and on the basis of this,benzophenone is microencapsulated with crosslinked polystyrene through a″In Situ Polymerizition″process and the chemical composition and the microstructure of the microcapsule were characterized by FTIR and SEM.The influence of benzophenone on the polymerizition process and the factors which control Ds of the microcapsule are also carefully studied.更多还原