Effect of Polymer Host on Aggregation-Induced Enhanced Emission of Fluorescent Optical Brighteners.

Autor:	Schyns ZOG; Department of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9BL, United Kingdom.; Sustainable Materials Innovation Hub, Henry Royce Institute, University of Manchester, Manchester M13 9BL, United Kingdom., Bennett TM; Department of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9BL, United Kingdom.; Sustainable Materials Innovation Hub, Henry Royce Institute, University of Manchester, Manchester M13 9BL, United Kingdom., Davison GE; ReCon Limited, Henry Royce Institute, University of Manchester, Manchester M13 9BL, United Kingdom., Shaver MP; Department of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9BL, United Kingdom.; Sustainable Materials Innovation Hub, Henry Royce Institute, University of Manchester, Manchester M13 9BL, United Kingdom.
Jazyk:	angličtina
Zdroj:	ACS applied polymer materials [ACS Appl Polym Mater] 2024 Jan 31; Vol. 6 (3), pp. 2031-2040. Date of Electronic Publication: 2024 Jan 31 (Print Publication: 2024).
DOI:	10.1021/acsapm.4c00090
Abstrakt:	Fluorophores displaying concentration-dependent luminescence are becoming increasingly valuable in stress-sensing, tagging, and dyeing applications, including the quantification of recycled content in plastic packaging. In this work, we investigate the effects of the polymer matrix, dye structure, and crystallinity on aggregation-induced enhanced emission (AIEE). We demonstrate that the aggregation threshold required for successful quantification can be adjusted through modulation of guest-host (dye-polymer) interactions and monitored using an array of fluorescence characterization. Modification of guest-host interactions is realized through choice of host, change of guest, and tuning of the crystallinity of the host system. Increasing the number of guest-host interactions and solubility between guest and host, loosely predicted through the calculation of the solubility parameter, increases the aggregation threshold relative to other low-polarity and low-interacting systems. We demonstrate that issues, such as loading level and cost, associated with high aggregation thresholds, can be circumvented by increasing system crystallinity, improving spectral intensities, and subsequent quantification. These insights explore the fundamental understanding of supramolecular interactions that govern dye-polymer systems. Competing Interests: The authors declare the following competing financial interest(s): Zoe Schyns and Michael Shaver established a not-for-profit spin-out exploring the use of AIEE to improve plastics recycling. (© 2024 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu