Synthesis of poly(α-methyl β-alanine)-poly(ε-caprolactone) [PmBA-(PCL)2] tri arm star polymer was accomplished by "click" chemistry. For this purpose, poly(α-methyl β-alanine) (PmBA) was synthesized from methacrylamide by hydrogen transfer polymerization (HTP). Terminally dibromo PmBA (PmBA-2Br) was obtained by using the end-group modification method. Terminally diazido poly(α-methyl β-alanine) [PmBA-2N₃] was synthesized by the reaction of PmBA-2Br and sodium azide. Terminally propargyl poly(ε-caprolactone) [PCL-propargyl] was obtained using ε-caprolactone and propargyl alcohol by ring-opening polymerization. By the reaction of PCL-propargyl and PmBA-2N₃, PmBA-(PCL)2 tri arm star polymer was synthesized via "click" chemistry. The characterizations of products were performed by using multi instruments including ¹H-NMR, FT-IR, MALDI-MS, GPC, and SEM. Degradation features of the tri arm star polymer was investigated by using TGA technique. Water uptake measurement of the tri arm star polymer was performed. The multi instruments studies of the tri arm star polymer monitor that the polymer easily formed as a result of "click" chemistry.

聚（α-甲基β-丙氨酸）-聚（ε-己内酯）[PmBA-（PCL）2]三臂星形聚合物的合成通过“点击”化学完成。为此，通过氢转移聚合（HTP）由甲基丙烯酰胺合成了聚（α-甲基β-丙氨酸）（PmBA）。通过使用端基修饰方法获得末端二溴PmBA（PmBA-2Br）。通过PmBA-2Br与叠氮化钠的反应合成末端重氮基聚（α-甲基β-丙氨酸）[PmBA-2N ₃ ]。使用ε-己内酯和炔丙醇通过开环聚合获得末端炔丙基聚（ε-己内酯）[PCL-炔丙基]。通过PCL-炔丙基与PmBA-2N _3的反应，通过“点击”化学合成了PmBA-（PCL）2三臂星形聚合物。使用包括¹ H-NMR，FT-IR，MALDI-MS，GPC和SEM在内的多种仪器对产物进行表征。利用TGA技术研究了三臂星形聚合物的降解特性。进行了三臂星形聚合物的吸水率测量。对三臂星形聚合物监控器的多仪器研究表明，由于“喀哒”化学反应，聚合物容易形成。