本文主要是將兩種不同的聚合反應機構結合在一起，第一種為活性自由基聚合反應 (Living radical polymerization)，所選擇的單體為苯乙烯 (Styrene)，第二種為開環聚合反應 (Ring opening polymerization)，使用的單體為己內酯(ε-Caprolactone)。文章一開始以探討不同起始劑為主，並發現不管何種起始劑，雖然有其反應性和副反應的不同，但皆能連接兩種不同的聚合反應產生嵌段共聚物，而能否成功連結的重點在於二氯二茂鈦與鋅金屬調控系統中的比例，在過量的三價氯二茂鈦大於過量鋅金屬始能夠結合兩種不同聚合機制，並在最後以一鍋化和優化的條件後也成功合成出 PS-b-PCL 嵌段共聚物，由 DSC 和 TGA 的分析證實與文獻所做的嵌段共聚物有類似的特性。

We have successfully combined two different polymerization mechanisms together via Ti-complex system. One of them is the living radical polymerization of styrene, and the other one is the ring opening polymerization of ε-caprolactone. In the beginning of the research, we investigated different kinds of initiators and found that no matter using aldehyde or epoxide as initiators could also generate one active radical for inducing styrene living radical polymerization, and formed titanium alkoxide which is an active center forε-caprolactone ring opening polymerization. The key for hybridizing two systems is the Ti-complex / Zn ratio, and only when the excess Ti-complex are larger than Zn nanoparticles the hybridization will success. We further used these acknowledgements to synthesize PS-b-PCL block copolymer via one-pot reaction, and using DSC and TGA to test the physical properties and thermal stability of the materials.

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