摘要
通过反相微乳液聚合法将丙烯酰氧基荧光素（Ac-Flu）与丙烯酰胺共聚合成了含荧光素的聚丙烯酰胺荧光微球P（AM-BA-Ac-Flu）。采用红外光谱、荧光显微镜对荧光微球进行了结构表征,采用称量法研究了矿化度、温度对微球溶胀性能的影响,同时采用荧光光谱探讨了pH和离子种类对荧光微球荧光强度的影响。结果表明,荧光微球在1g/L NaCl水中的膨胀倍数可达12倍,在pH为8.0~10.0并含有金属离子的水溶液中荧光性能稳定,可作为潜在的油田封堵剂和示踪剂。
Through reverse microemulsion polymerization to synthesis polyacrylamide fluorescent microspheres P（AM-BA-Ac-Flu）with 3-acryloyl fluorescein（Ac-Flu）and acrylamide.The fluorescent microspheres were characterized by FT-IR and fluorescence microscope.The effects of salinity and temperature on the expansion properties of the microspheres were studied by weighing method.At the same time,the fluorescence spectroscopy was used to investigate the effects of pH and the ionic species on the fluorescence intensity of the microspheres.The results show that the expansion ratio can be up to 12 times when the microspheres are in 1g/L NaCl solution.The fluorescence performance is stable in the solution containing metal ions at the pH 8.0~10.0.The fluorescent microspheres can be used as potential oil field blocking agent and tracer.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2015年第10期170-174,共5页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(21273286)
教育部博士点基金(20130133110005)
关键词
3-丙烯酰氧基荧光素
反相微乳液聚合
聚丙烯酰胺
荧光微球
3-acryloyl fluorescein
inverse microemulsion polymerization
polyacrylamide
fluorescent microsphere
