烯醇式锌和铝配合物应用于ε-CL和LA的开环聚合
发布时间：2018-11-17 12:18
【摘要】：高分子材料在带给社会进步与人民生产生活方便的同时,给我们生存的环境带来了不可估量的破坏作用。随着科学技术的进步,“可持续发展”、“绿色发展”的理念逐步深深烙入人们的心中。脂肪族聚酯类化合物(aliphatic polyesters),比如聚丙交酯(PLA)、聚己内酯(PCL)等均聚物以及它两之间不同类型的共聚物由于拥有可降解性、更好的生物亲和性、渗透性和可再生性在生物、医疗、材料、药物载体应用广泛。多年以来国内外的研究表明金属催化剂催化内酯和交酯的开环聚合,是合成这类高分子材料一种比较理想的方法。本论文合成了2个系列且不同类型的[N,O]双齿配体的锌、铝金属化合物,并对这些金属配合物进行了X-射线单晶衍射(X-ray Crystal Structure Determination)、核磁共振(NMR)、元素分析(elemental analysis)等测试技术表征。并且对合成出来的配合物进行了丙交酯、己内酯的均聚和共聚催化作用研究。主要内容概括如下:第一章介绍了脂肪族聚酯例如PCL和PLA的均聚和共聚的聚合机理,分类介绍了Zn、Mg、Al等配合物作为催化剂近来在国内外的研究进程。第二章制备一系列[N,O]双齿配体的金属Zn配合物并对这类配合物进行表征。然后进行己内酯与丙交酯的单一聚合和他两之间共聚性能研究。第三章研究在不同条件下和合成一系列[N,O]双齿配体的金属Al配合物并对这类配合物进行表征。讨论分析条件的不同对所生成的金属铝配合物的影响,并对他们的不同结构进行分析讨论。然后对相关配合物进行己内酯的催化性能研究。
[Abstract]:Polymer materials not only bring social progress and convenient production and life, but also bring immeasurable damage to our living environment. With the progress of science and technology, the concept of "sustainable development" and "green development" is deeply rooted in people's hearts. Aliphatic polyester compounds such as (aliphatic polyesters), such as poly (lactide) (PLA), polycaprolactone (PCL), and their different types of copolymers have better biocompatibility due to their degradability. Permeability and reproducibility are widely used in biological, medical, material and drug carriers. For many years, researches at home and abroad show that metal catalyst is an ideal method for the synthesis of this kind of polymeric materials, because of the ring-opening polymerization of lactone and lactide. In this paper, two series of [Nino O] didentate ligands of zinc and aluminum have been synthesized, and the complexes have been characterized by X-ray Crystal Structure Determination), NMR (NMR),. Elemental analysis, (elemental analysis), etc. The homopolymerization and copolymerization of lactide and caprolactone were studied. The main contents are summarized as follows: in Chapter 1, the mechanism of homopolymerization and copolymerization of aliphatic polyester such as PCL and PLA is introduced, and the recent research progress of Zn,Mg,Al complexes as catalysts at home and abroad is introduced. In chapter 2, a series of metal Zn complexes of [Nino O] didentate ligands were prepared and characterized. Then the single polymerization of caprolactone and lactide and the properties of copolymerization between caprolactone and lactide were studied. In chapter 3, a series of metal Al complexes of [Nino O] didentate ligands were synthesized and characterized under different conditions. The influence of different analytical conditions on the formation of aluminum complexes is discussed, and their different structures are discussed. Then the catalytic performance of caprolactone was studied.
【学位授予单位】：山西大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O641.4;O631.5
本文编号：2337760
[Abstract]:Polymer materials not only bring social progress and convenient production and life, but also bring immeasurable damage to our living environment. With the progress of science and technology, the concept of "sustainable development" and "green development" is deeply rooted in people's hearts. Aliphatic polyester compounds such as (aliphatic polyesters), such as poly (lactide) (PLA), polycaprolactone (PCL), and their different types of copolymers have better biocompatibility due to their degradability. Permeability and reproducibility are widely used in biological, medical, material and drug carriers. For many years, researches at home and abroad show that metal catalyst is an ideal method for the synthesis of this kind of polymeric materials, because of the ring-opening polymerization of lactone and lactide. In this paper, two series of [Nino O] didentate ligands of zinc and aluminum have been synthesized, and the complexes have been characterized by X-ray Crystal Structure Determination), NMR (NMR),. Elemental analysis, (elemental analysis), etc. The homopolymerization and copolymerization of lactide and caprolactone were studied. The main contents are summarized as follows: in Chapter 1, the mechanism of homopolymerization and copolymerization of aliphatic polyester such as PCL and PLA is introduced, and the recent research progress of Zn,Mg,Al complexes as catalysts at home and abroad is introduced. In chapter 2, a series of metal Zn complexes of [Nino O] didentate ligands were prepared and characterized. Then the single polymerization of caprolactone and lactide and the properties of copolymerization between caprolactone and lactide were studied. In chapter 3, a series of metal Al complexes of [Nino O] didentate ligands were synthesized and characterized under different conditions. The influence of different analytical conditions on the formation of aluminum complexes is discussed, and their different structures are discussed. Then the catalytic performance of caprolactone was studied.
【学位授予单位】：山西大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O641.4;O631.5
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