Design, synthesis and performance of novel fluorescent polymer microspheres tracers based on aggregation induced emission

• Published in: Journal of applied polymer science 2023-04, Vol.140 (15), p.n/a
• Main Authors: Zhou, Wu, Liang, Qingxiang, Wu, Aibin, Shu, Wenming, Yu, Weichu
• Format: Article
• Language: English
• Subjects: Acrylamide; Agglomeration; aggregation‐induced emission; Benzene; Chemical synthesis; Emission analysis; Field emission microscopy; Fluorescence; Materials science; Microscopy; Microspheres; Oil fields; polymer microspheres; Polymers; Raw materials; Stability; Temperature effects; Tetrahydrofuran; Tracers
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.53727

In this study, blue fluorescent polymer microspheres tracers are prepared by dispersion polymerization using aggregation induced emission monomers, styrene and sodium vinyl benzene sulfonate as raw materials. The properties of the microspheres are investigated by field emission scanning electron microscopy, fluorescence microscopy and fluorescence spectrum. The results show that N‐(4‐(4‐(1,2,2‐triphenylvinyl)phenoxy)butyl)acrylamide exhibits typical AIE properties in a mixture of water and tetrahydrofuran. The fluorescent polymer microspheres are smooth and monodisperse. Concentration‐dependent experiments indicate that the fluorescence intensity of the fluorescent polymer microspheres increases with the increasing of concentration. In addition, we explore the effects of temperature, pH, and some metal ions on the fluorescent polymer microspheres, and find that the fluorescence intensity is still good under these influencing conditions. We also investigate the stability of the polymer, the fluorescence intensity of the polymer hardly changed during the 30‐day monitoring period, indicating its good stability. Therefore, the above research results indicate that the fluorescent polymer microspheres can be used as potential oilfield tracers. Fluorescent polymer microspheres are prepared by dispersion polymerization of aggregation‐induced emission monomers with styrene and sodium vinylbenzene sulfonate. It has good stability, temperature resistance, acid and alkali resistance, and most metal ions have little effect on them, overcoming the defects of aggregation induced quenching of small molecular fluorescent dyes.