精品文档---下载后可任意编辑乳酸-乙醇酸共聚物合成及其扩链反应讨论的开题报告【摘要】乳酸-乙醇酸共聚物是一种具有良好可降解性和可生物分解性的材料，适用于医药、食品包装等领域，具有广泛的用途前景。本文旨在讨论乳酸-乙醇酸共聚物的合成方法以及其扩链反应过程，为该材料的应用和开发提供理论基础和实验依据。通过文献调研和实验探究，得出了以下结论：1. 乳酸-乙醇酸共聚物可以通过环合反应、酯化反应、催化剂引导聚合等方法制备；2. 不同方法制备的共聚物具有不同的物理性质和降解性能；3. 扩链反应是共聚物重要的改性手段之一，可以增加其分子量和结晶度，提高其力学性能。【关键词】乳酸-乙醇酸共聚物；合成方法；扩链反应；降解性能【Abstract】Lactic acid-ethyl acid copolymer is a material with good biodegradability and biodegradability, which is suitable for medical, food packaging and other fields, and has a wide range of application prospects. This paper aims to study the synthesis method and chain-extending reaction process of lactic acid-ethyl acid copolymer, and provide theoretical basis and experimental basis for the application and development of this material. Through literature investigation and experimental research, the following conclusions are drawn: 1. Lactic acid-ethyl acid copolymer can be prepared by ring-closure reaction, esterification reaction, catalytic polymerization and other methods. 2. Copolymers prepared by different methods have different physical properties and degradation performance. 3. Chain extension reaction is one of the important modification methods of copolymers, which can increase their molecular weight and crystallinity, and improve their mechanical properties.【Keywords】Lactic acid-ethyl acid copolymer; synthesis method; chain extending reaction; degradation performance
