材料科学
松香
傅里叶变换红外光谱
异佛尔酮二异氰酸酯
荧光
热稳定性
萘
聚氨酯
接触角
甲基丙烯酸缩水甘油酯
环氧氯丙烷
聚己内酯
高分子化学
化学工程
核化学
有机化学
聚合物
化学
复合材料
聚合
物理
量子力学
树脂酸
工程类
作者
Jianben Xu,Chengfei Yan,Guangjie Lu,Yu Chen,Faai Zhang
出处
期刊:Green Materials
[Thomas Telford Ltd.]
日期:2023-05-15
卷期号:: 1-9
标识
DOI:10.1680/jgrma.23.00031
摘要
Fluorescent polyurethanes (FPU) have been widely used in coatings, temperature recognition, fluorescent probes, and other fields because of their diverse structures and properties. Unfortunately, most FPUs are currently produced from petroleum-based products. Herein, a thermoplastic rosin-based naphthalene FPU was prepared by using the biobased ester of acrylic rosin and glycidyl methacrylate, polycaprolactone, 1, 5-dihydroxy naphthalene (1, 5-DN) and isophorone diisocyanate as the raw materials. The structure of FPU was confirmed by proton nuclear magnetic resonance ( 1 H NMR) and Fourier transform infrared spectroscopy (FTIR). In addition, thermal performance analysis (TGA, DSC) and water contact angle analysis (WCA) showed that the addition of 1, 5-DN improved the thermal stability and hydrophobicity of FPU. More importantly, FPU exhibited good fluorescence performance in both liquid and solid states, and the fluorescence intensity increased with increasing temperature. Both aniline and trichloromethane showed effective fluorescence quenching for FPU. Therefore, FPU is a promising material for applications in temperature recognition and fluorescence probes.
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