Chen Xiang, Hu Chenxi, Wang Yang, Li Ting, Jiang Jie, Huang Jing, Wang Shibo, Liu Tianxi, Dong Weifu, Qiao Jinliang
The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China.
SINOPEC, Beijing Research Institute of Chemical Industry, Beijing, 100013, China.
Macromol Rapid Commun. 2023 Feb;44(3):e2200653. doi: 10.1002/marc.202200653. Epub 2022 Oct 17.
In this study, the optical properties of poly(maleic anhydride-alt-vinyl acetate) (PMV) synthesized by different polymerization methods are studied systematically. Compared to self-stabilized precipitation polymerization (pPMV), solution polymerization produces PMV solids (sPMV) with an extraordinarily high quantum yield (QY) of 20.65%. Additionally, redissolving pPMV in good solvents (rPMV) will also help to increase QY. The rising QY of sPMV and rPMV supports the idea that good solvents will reduce the rigidity of polymer chains and promote cluster formation, which is confirmed by lower glass transition temperature (T ) and small angle X-ray scatterer (SAXS). The study also finds that PMV exhibits application potentials in white light-emitting diodes (WLEDs) and light conversion film.
在本研究中，系统地研究了通过不同聚合方法合成的聚（马来酸酐-alt-醋酸乙烯酯）（PMV）的光学性质。与自稳定沉淀聚合（pPMV）相比，溶液聚合产生的PMV固体（sPMV）具有高达20.65%的异常高量子产率（QY）。此外，将pPMV重新溶解在良溶剂中（rPMV）也有助于提高QY。sPMV和rPMV的QY升高支持了这样的观点，即良溶剂会降低聚合物链的刚性并促进聚集体形成，这通过较低的玻璃化转变温度（T）和小角X射线散射（SAXS）得到证实。该研究还发现，PMV在白光发光二极管（WLED）和光转换膜方面展现出应用潜力。
