Intramolecular Cyclization of Reactive Mesogens for Applications in Optical Films and Coatings

关于欧洲正在进行的关于政治和化学工业可持续性的辩论，开发环境友好型材料和加工技术至关重要。具体地说，在工艺过程中用无溶剂或水基体系取代有机溶剂正变得越来越可取。因此，紫外光固化(无溶剂)聚合物体系在涂料、粘合剂、薄膜和智能材料的开发中引起了极大的兴趣。然而，紫外光固化体系的范围有限。丙烯酸酯和甲基丙烯酸酯是工业上最受欢迎的选择，因为它们成本低，易于衍生化，加工速度快。然而，在某些情况下，这种预聚体的使用可能会限制最终聚合物产品的性能。本项目的目的是设计新的以液晶单元(介晶)为连接体的二聚二烯丙基酰胺和二烯丙基胺，并研究它们的光聚合机理。介晶性连接体应该排列用于光聚合的单体，从而可以产生具有期望的物理性能的材料。

With respect to the ongoing debate about sustainability in politics and the chemical industry in Europe the development of environmentally friendly materials and processing technologies is pivotal. Specifically the replacement of organic solvents in technological processes by solvent-free or water based systems is becoming increasingly desirable. UVcurable (solvent-free) polymer systems are therefore of high interest in the development of coatings, adhesives, thin-films and smart materials. However, the range of UV-curable systems is limited. Acrylates and methacrylates are the most popular choice for use by industry because of their low cost, ease of derivatization and speed of processing. Nevertheless, the use of such prepolymers can, in some cases, tend to limit the properties of the final polymer product. The aim of this project is to design new dimeric diallylamides and diallylamines with liquid crystal units (mesogenes) as linkers and to investigate the mechanism of their photopolymerization. The mesogenic linker should arrange the monomers for the photopolymerization and thus may produce materials with desirable physical properties.