摘要
采用甲基三甲氧基硅烷水解缩聚反应制备了甲基硅树脂微球。利用γ-氨丙基三乙氧基硅烷(KH550)作为偶联剂,实现了荧光分子酸性红87在甲基硅树脂微粒表面的稳定键合,成功研制出荧光性能卓越的甲基硅树脂微球体。通过红外光谱、扫描电镜、三维荧光光谱与紫外-可见光谱对其进行了表征。结果表明,KH550有效促进了酸性红87在微球表面的键合,所合成的荧光微球直径约为5μm,展现出优异的荧光活性,且辨识出三组核心的激发-发射波长对,分别为(370 nm,431 nm)、(380 nm,607 nm)与(250 nm,605 nm),表明所制备的微球能有效将紫外光转换为蓝光与红光,其光谱特性与植物光合作用的吸光范围契合。因此,该荧光微球有望成为一种高效植物转光剂。
The methylsilicone resin microspheres were prepared by hydrolysis and condensation with methyltrimethoxysilane.The fluorescent methylsilicone resin microspheres were successfully synthesized by stably bonding the fluorescent molecule acid red 87 to the surface of methylsilicone resin microspheres withγ-aminopropyl triethoxysilane(KH550)as coupling agent.The products were characterized by Fourier infrared spectrometer,scanning electron microscope,three-dimensional fluorescence spectrometer and UV-vis spectrometer.The results show that acidic red 87 can be effectively bound to the surface of the microspheres by KH550.The synthesized fluorescent microspheres have a diameter of approximately 5μm,exhibit excellent fluorescence activity,and can identify three core excitation-emission wavelength pairs,namely(370 nm,431 nm),(380 nm,607 nm)and(250 nm,605 nm),respectively.The microspheres can convert ultraviolet light into blue and red light,which can accord with the absorption wavelength of plant photosynthesis and can be used as a highly efficient plant light conversion agent.
作者
白家宝
胡庆华
潘家炎
BAI Jiabao;HU Qinghua;PAN Jiayan(School of Chemical Engineering,Jiujiang University,Jiujiang 332005,China;Organosilicon New Material Industry Research Institute,Jiujiang 332005,China)
出处
《有机硅材料》
2025年第2期33-37,共5页
Silicone Material
基金
江西省高等学校教学改革研究省级立项课题(JXJG-22-17-24)。
关键词
荧光微球
甲基硅树脂
荧光活性
转光剂
fluorescent microspheres
methylsilicone resin
fluorescent activity
light conversion agent
