期刊
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
卷 704, 期 1, 页码 81-88出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421406.2020.1741806
关键词
Fluorescence; fluorinated polymer; pyrene; superhydrophobic
资金
- Research Program of Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials in Network Joint Research Center for Materials and Devices
- Japan Prize Foundation
- Ogasawara Foundation for the Promotion of Science Engineering
We synthesized pyrene-containing amphiphilic fluorinated copolymers p(C(7)F(15)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(C(7)F(15)MAA/PyMMA0.6) and p(C(7)F(15)MAA/PyMMA3). p(C(7)F(15)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 degrees and low surface free energy (< 19 mN m(-1)). The emission from the p(C(7)F(15)MAA/PyMMA0.6) nanoparticle film was dominated with monomeric emission, while that from the p(C(7)F(15)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.
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