超支化聚羟基酯的非常规荧光发射行为
Unconventional Fluorescence Emission Behaviors of Hyperbranched Polyhydroxyester
薛小强 1刘志坤 2黄文艳 2杨宏军 2江力 2蒋其民 2蒋必彪2
作者信息
- 1. 常州大学材料科学与工程学院,江苏 常州 213164;常州工学院化工与材料学院碳纤维新材料产业学院,江苏 常州 213032
- 2. 常州大学材料科学与工程学院,江苏 常州 213164
- 折叠
摘要
以丙三醇三缩水甘油醚(GTE)、丁二酸(SA)、顺丁烯二酸(MA)为原料,通过羧基与环氧结构在无催化剂条件下开环聚合制备一类具有非常规荧光发射行为的超支化聚羟基酯(PHE).使用傅里叶变换红外光谱(FTIR)、核磁共振氢谱(1 H NMR)和凝胶渗透色谱(GPC)对聚合物的结构进行表征.使用紫外-可见分光光度计(UV-Vis)和荧光分光光度计等手段对其荧光性能进行探究.结果显示,PHE表现出稳定的发光性能,随着聚合物溶液浓度的增加,其簇聚诱导发光效率获得显著增强,具有浓度增强发射及激发波长依赖性等非常规发光的典型特性,为设计非传统发光材料提供了新的思路.
Abstract
A kind of hyperbranched polyhydroxyester(PHE)with unconventional fluorescence emission behavior was prepared by the ring opening polymerization of carboxyl groups and epoxy groups under catalyst-free conditions,using glycerol triglycidyl ether(GTE),succinic acid(SA)and maleic acid(MA)as raw materials.The polymer structures were characterized by Fourier transform infrared spectroscopy(FTIR),nuclear magnetic resonance spectroscopy(1 H NMR)and gel permeation chromatography(GPC).The fluorescence properties were investigated by the ultraviolet-visible spectrophotometer(UV-Vis)and fluorescence spectrophotometer.The results show that PHE exhibits stable luminescence properties.As the concentration of the polymer solution increases,the cluster-induced luminescence efficiency of PHE is significantly enhanced.PHE has typical characteristics of unconventional luminescence such as concentration-enhanced emission and dependence of excitation wavelength,which provides a new idea for the design of unconventional luminescent materials.
关键词
非常规发光/聚羟基酯/簇聚诱导发光Key words
Unconventional Luminescence/Polyhydroxyester/Cluster-Induced Luminescence引用本文复制引用
出版年
2024
NETL
NSTL
万方数据