La-PMMA-水杨酸-D-苯丙氨酸聚合物的制备与表征

Preparation and Characterization of Chiral Polymer La-PMMA-Salicylic Acid-D-Phenylalanine

首先将稀土元素镧与D-苯丙氨酸,水杨酸,甲基丙烯酸甲酯(MMA)进行配位形成镧配合物,以镧配合物为单体,加入引发剂偶氮二异丁腈(AIBN)引发单体聚合合成了La-PMMA-水杨酸-D-苯丙氨酸手性聚合物,并通过红外光谱(FT-IR),核磁共振(HNMR),扫描电镜(SEM)和凝胶渗透色谱(GPC)等对产物进行了测试与分析.结果表明:已成功制备了La-PMMA-水杨酸-D-苯丙氨酸手性聚合物;聚合物粒子呈球状,平均粒径约为1μm;手性聚合物的Mw为8 240,分子量分布较窄.

The chiral polymer of La-PMMA-salicylic acid-D-phenylalanine was prepared using anhydrous ethyl alcohol as solvent,AIBN as initiator and the La complexes containing methyl methacrylate （MMA）,salicylic acid and D-phenylalanine as monomer.The sample was characterized by fourier transform infrared spectroscopy（FT-IR）,hydrogen nuclear magnetic resonance（HNMR）,scanning electron microscopy analysis（SEM） and gel permeation chromatographer（GPC） respectively.The results show that the La-PMMA-salilyloc acod-D-phenylalanine chiral polymer had been prepared sullessfully.The scanning electron micrograph（SEM） results for the complexes demonstrate that the chiral polymer were obtained with regular ball particles and the average diameter is about 1μm.The Mw of the chiral polymer is 8 240 and the polydispersity index is low.