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

关于欧洲政治和化学工业的可持续性正在进行的辩论，环境友好材料和加工技术的发展是关键。特别是在技术过程中，用无溶剂或水基系统代替有机溶剂正变得越来越可取。因此，不可固化（无溶剂）聚合物系统在涂料、粘合剂、薄膜和智能材料的发展中具有很高的兴趣。然而，紫外光固化系统的范围是有限的。丙烯酸酯和甲基丙烯酸酯是工业上最常用的选择，因为它们成本低，易于衍生化和加工速度快。然而，在某些情况下，这种预聚物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二聚二烯丙胺和以液晶单元为连接体的二烯丙胺，并研究它们的光聚合机制。介生连接剂应该安排单体进行光聚合，从而可以生产出具有理想物理性能的材料。

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.