中文摘要：

首先利用异丙基硫杂蒽酮／N，N-二甲基氨基对苯甲酸乙酯（ITX／EDAB）光引发体系制备两种末端带有ITX残留基团的大分子引发剂聚甲基丙烯酸甲酯（PMMA—ITXH）和马来酸酐-醋酸乙烯酯共聚物（PMV—ITXH），然后借助ITX基团的可逆偶合与断裂机理分别以PMMA-ITXH引发苯乙烯单体常规乳液聚合，以PMV—ITXH引发MMA单体无皂乳液聚合。对聚合产物的分子量及分子量分布、形貌等进行了考察，并与本体聚合产物进行比较，发现：末端带有ITX基团的大分子引发剂可以很好的引发单体（苯乙烯、甲基丙烯酸甲酯）的乳液聚合；常规乳液聚合相对于本体聚合具有聚合速率快及产物分子量大的特点；无皂乳液聚合获得产物粒子粒径均匀、胶乳稳定。

英文摘要：

A residual group-containing precursor was synthesized by photopolymerization initiated by the hydrogen abstraction photo initiator system 2-isopropylthioxanthone/ethyl 4-（dimethylamino） benzoate （ITX/EDAB）. The polymerization was initiated by the reversible coupling-fragmentation of ITX residues. Conventional emulsion polymerization of styrene （St） was initiated by poly（ methyl methacrylate）-ITXH （PMMA-ITXH）, and the soap-free emulsion polymerization of methyl methacrylate （MMA） was initiated by maleic anhydride/vinyl acetate copolymer- ITXH （PMV-ITXH）. The polymer weights, polydispersities and particle morphologies were investigated. The resuits showed that the macroinitiators containing ITX residues can initiate the emulsion polymerization of St and MMA. The emulsion polymerization exhibited fast polymerization rates and gave high molecular weights whilst the soap-free emulsion produced stable particles with even particle sizes.