Conjugated microporous polymers as molecular sensing devices: microporous architecture enables rapid response and enhances sensitivity in fluorescence-on and fluorescence-off sensing

Journal of the American Chemical Society
Xiaoming LiuDonglin Jiang

Abstract

Conjugated polymers are attractive materials for the detection of chemicals because of their remarkable π-conjugation and photoluminescence properties. In this article, we report a new strategy for the construction of molecular detection systems with conjugated microporous polymers (CMPs). The condensation of a carbazole derivative, TCB, leads to the synthesis of a conjugated microporous polymer (TCB-CMP) that exhibits blue luminescence and possesses a large surface area. Compared with a linear polymer analogue, TCB-CMP showed enhanced detection sensitivity and allowed for the rapid detection of arenes upon exposure to their vapors. TCB-CMP displayed prominent fluorescence enhancement in the presence of electron-rich arene vapors and drastic fluorescence quenching in the presence of electron-deficient arene vapors, and it could be reused without a loss of sensitivity and responsiveness. These characteristics are attributed to the microporous conjugated network of the material. Specifically, the micropores absorb arene molecules into the confined space of the polymer, the skeleton possesses a large surface area and provides a broad interface for arenes, and the network architecture facilitates exciton migration over the framewor...Continue Reading

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Citations

Jul 17, 2013·Analytica Chimica Acta·Molla R IslamMichael J Serpe
Dec 31, 2016·Chemical Reviews·Saikat DasShilun Qiu
Mar 4, 2017·Journal of the American Chemical Society·Yun-Bing ZhouZhuang-Ping Zhan
Apr 20, 2017·Chemical Society Reviews·Nicolas ChaouiArne Thomas
Jun 7, 2017·ACS Applied Materials & Interfaces·Qin-Qin DangXian-Ming Zhang
Aug 18, 2016·Chemistry : a European Journal·Dengxu WangHongzhi Liu
Nov 26, 2015·Physical Chemistry Chemical Physics : PCCP·K Venkata RaoSubi J George
Sep 4, 2015·Chemical Society Reviews·Xiangcheng SunYu Lei
Oct 16, 2015·Chemical Communications : Chem Comm·Sankarasekaran Shanmugaraju, Partha Sarathi Mukherjee
Jul 15, 2015·Chemical Communications : Chem Comm·Xuesong Ding, Bao-Hang Han
Apr 29, 2015·Chemical Communications : Chem Comm·Ju Hong KoSeung Uk Son
Jan 14, 2016·Chemical Communications : Chem Comm·Xiang-Chun LiWei Huang
Sep 15, 2015·Chemical Communications : Chem Comm·Subhajit BhuniaAsim Bhaumik
Aug 16, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Zheng-Dong DingZhi-Guo Gu
Oct 31, 2017·Macromolecular Rapid Communications·Qiujing ZhangShijie Ren
Jun 21, 2018·Chemical Communications : Chem Comm·Subhajit BhuniaSantanu Bhattacharya
Oct 15, 2013·Angewandte Chemie·Augusto C Hernandez-Perez, Shawn K Collins
Dec 25, 2015·Macromolecular Rapid Communications·Xiaoyan WangJia-Xing Jiang
Aug 31, 2018·Angewandte Chemie·Yaroslav S KocherginMichael J Bojdys

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