Synthesis and self-assembly nanostructures of pyrene-containing amphiphilic fluorinated copolymers and their oxygen sensing application

被引：1
|
作者：
Im, Yongjoon [1 ]
Gao, Yu [1 ]
Zhu, Huie [1 ]
Yamamoto, Shunsuke [1 ]
Matsui, Jun [2 ]
Miyashita, Tokuji [1 ]
Mitsuishi, Masaya [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat IMRAM, Sendai, Miyagi, Japan
[2] Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata, Japan
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2020年 / 704卷 / 01期
关键词：
Fluorescence; fluorinated polymer; pyrene; superhydrophobic;
D O I：
10.1080/15421406.2020.1741806
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：81 / 88
页数：8
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