介孔材料受限空间中的AGET ATRP和ARGET ATRP聚合反应

项目名称： 介孔材料受限空间中的AGET ATRP和ARGET ATRP聚合反应

项目编号： No.21664005

项目类型： 地区科学基金项目

立项/批准年度： 2017

项目学科： 数理科学和化学

项目作者： 张发爱

作者单位： 桂林理工大学

项目金额： 20万元

中文摘要： 受限空间进行的聚合反应与常规聚合反应得到的聚合物性能不同。基于介孔材料高比表面积、有序孔道和均匀的孔径，将其作为纳米聚合反应器，将单体、催化剂、引发剂、配体、还原剂、溶剂等吸附在介孔孔道内部，探索在受限的介孔材料内部进行的电子转移生成/再生催化剂的原子转移自由基聚合反应(AGET/ARGET ATRP)，研究介孔材料结构(一维、二维和三维)、孔径大小与表面特性(亲水或亲油)对这两种典型的活性可控自由基聚合反应单体转化率和聚合动力学的影响，重点研究介孔材料内部聚合物的含量、聚合物的分子量及其分布、玻璃化转变温度、立体规整性的影响，阐明介孔受限空间内活性自由基聚合反应机理，建立介孔材料结构-受限空间的活性自由基聚合反应-聚合物结构和性能之间的关系，丰富和发展活性/可控自由基聚合理论，为设计和制备具有预定结构和性能的新型聚合物和复合材料奠定理论基础。

中文关键词： 活性可控自由基聚合；电子转移生成催化剂的原子转移自由基聚合反应；电子转移再生催化剂的原子转移自由基聚合反应；介孔材料；受限空间

英文摘要： Polymerization reaction in the confined spaces differs from conventional one, leading to polymer with different properties. Based on the high specific surface area, ordered channel and uniform pore size, the mesoporous materials are used as nanoreactor in the project. Monomer, catalyst, initiator, ligand, reducing agent and solvent are adsorbed inside of mesoporous materials firstly, the living free.radical polymerizations in the confined spaces of the mesoporous silica are investigated, including activators generated by electron transfer for atom transfer radical polymerization (AGET ATRP) and activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP). The effects of structure (1D, 2D or 3D), pore size and surface characteritic of the mesoporous materials on the monomer conversion and polymerization kinetic of the living radical polymerizations will be studied. It will focus on the polymer contents inside the mesoporous materials, molecular weight and molecular weight distribution, glass transition temperature, and tacticity of the polymer, in order to illuminate the reaction mechanism of the living free radical polymerization in the confined spaces. In doing so, the relationship of mesoporous structure, polymerization in confined spaces, and polymer structure and properties are established, which will enrich and develope active/controlled free radical polymerization theory, provide the theoretical basis for design and preparation of novel polymer and composite with well-defined structure and property.

英文关键词： Living/controlled free radical polymerizations;AGET ATRP;ARGET ATRP;mesoporous materials;confined spaces