Development of Polymer Materials with Solar Energy Storage-Exchange Property

本研究项目致力于开发具有太阳能存储交换性能的聚合物材料。我们成功地大规模合成了3-苯基-2，5-NBD-2-羧酸(PncA)，它们具有良好的光化学反应活性，可用于太阳能储能交换系统。在合适的反应条件下，将聚甲基丙烯酸缩水甘油酯S中的环氧基团与聚甲基丙烯酸缩水甘油酯在适当的条件下进行加成反应，合成了含有侧基的聚甲基丙烯酸缩水甘油酯聚合物。然后考察了聚合物的光化学反应活性、储热性能、热稳定性等性能。此外，还利用一些新的合成方法合成了主链或侧链上含有NBD部分的各种聚合物。将2，5-NBD-2，3-二羧酸二缩水甘油醚与二酰氯缩水甘油醚进行缩合反应，然后在季铵盐作催化剂下用光敏剂对聚合物进行化学修饰，合成了主链上含有NBD基团的聚酯和侧链上带有光敏性基团的高活性聚酯。通过双环氧化合物与2，5-NBD-2，3-二元酸衍生物的共聚反应，合成了主链上含有NBD基团的聚酯酰胺-S。以环氧氯丙烷和其他NBD化合物与环氧氯丙烷、羧酸酐反应合成了含NBD基团的环氧树脂，通过开环共聚反应合成了含NBD基团的聚酯。含NBD基团的环氧化合物与含光敏化基团的环氧化合物与羧酸酐进行开环共聚，合成了高性能的NBD聚酯。然后，对这些聚合物在薄膜状态和溶液中的光化学反应活性和储热性能进行了评价。

This research project investigated to develop polymeric materials with solar energy storage-exchange property. We succeeded the synthesis of 3-phenyl-2,5-NBD-2-carboxylic acid (PNCA), which have excellent photochemical reactivity for solar energy storage-exchange system, in large scale. Polymers containing pendant PNCA groups were prepared by the addition reaction of pendant epoxide groups in poly (glycidyl methacrylate) s with PNCA under appropriate reaction conditions in large scale. Then, photochemical reactivity, thermal-energy storage property, thermal stability, and other properties of the polymers were investigated. Furthermore, various polymers containing NBD moieties in the main chain or the side chain were synthesized using some novel synthetic methods. That is, polyesters with NBD moieties in the main chain and pendant photosensitizing groups in the side chain, which have high photochemical reactivity, were synthesized by the polyaddition of diglycidyl ether of 2,5-NBD-2,3-dicarboxylic acid with diacyl chlorides followed by the chemical modification of the resulting polymers with photosensitizing compounds using quaternary onium salts as catalysts. Poly(ester-amide) s with NBD moieties in the main chain were synthesized by the polyaddition of bisepoxides with of 2,5-NBD-2,3-dicarboxylic acid derivatives. Polyesters containing pendant NBD moieties were synthesized by the ring-opening copolymerization of epoxy compounds containing NBD moieties, which were synthesized by the reaction of PNCA and other NBD compounds with epichlorohydrin, with carboxylic acid anhydrides. High performance NBD polyesters were also synthesized by the ring-opening copolymerization of the epoxy compounds containing NBD moieties and epoxy compounds containing photosensitizing groups with carboxylic acid anhydrides. Then, photochemical reactivity and thermal energy storage property of these polymers were evaluated in the film state or in solution.