Synthesis and self-assembly nanostructures of pyrene-containing amphiphilic fluorinated copolymers and their oxygen sensing application. (12th June 2020)

• Record Type: Journal Article
• Authors: Im, Yongjoon; Gao, Yu; Zhu, Huie; Yamamoto, Shunsuke; Matsui, Jun; Miyashita, Tokuji; Mitsuishi, Masaya
• Is Part Of: Molecular crystals and liquid crystals. Volume 704(2020)
• Page Start: 81
• Page End: 88
• Publication Date: 2020-06-12
• Subjects: Fluorescence -- fluorinated polymer -- pyrene -- superhydrophobic; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2020.1741806
• Languages: English
• ISSNs: 1542-1406

Abstract

Abstract: We synthesized pyrene-containing amphiphilic fluorinated copolymers p(C7 F15 MAA/PyMMA)s through free radical polymerization. The pyrene composition ratio was readily tuned from 0.6 to 3 mol% with different monomer feeding ratios, designated as p(C7 F15 MAA/PyMMA0.6) and p(C7 F15 MAA/PyMMA3). p(C7 F15 MAA/PyMMA) nanoparticle films were prepared by dropcasting copolymer solutions onto substrates with the mixture of AK-225 and acetic acid. The copolymer nanoparticle film surfaces exhibited superhydrophobic character with a water contact angle of greater than 160 ° and low surface free energy (< 19 mN m −1 ). The emission from the p(C7 F15 MAA/PyMMA0.6) nanoparticle film was dominated with monomeric emission, while that from the p(C7 F15 MAA/PyMMA3) nanoparticle film showed mainly excimer emission. The dissolved oxygen sensing performance of the nanoparticle films was also investigated in terms of the different emission modes.