Pillar[5]arene-based side-chain polypseudorotaxanes as an anion-responsive fluorescent sensor

Shu Sun; Xiao Yu Hu; Dongzhong Chen; Jianbing Shi; Yuping Dong; Chen Lin; Yi Pan; Leyong Wang

doi:10.1039/c3py00162h

Pillar[5]arene-based side-chain polypseudorotaxanes as an anion-responsive fluorescent sensor

Shu Sun, Xiao Yu Hu^*, Dongzhong Chen, Jianbing Shi, Yuping Dong, Chen Lin, Yi Pan, Leyong Wang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

96 Citations (Scopus)

Abstract

A linear pillar[5]arene-modified conjugated polymer was synthesized, and novel side-chain polypseudorotaxanes were formed via the host-guest interactions between the pillar[5]arene unit and n-octylpyrazinium salt. Compared with the conjugated polymer which shows strong fluorescence, the polypseudorotaxanes show very weak fluorescence due to the efficient electron transfer from the conjugated backbone to the n-octylpyrazinium cation. Moreover, upon addition of chloride anion to the solution of the side-chain polypseudorotaxanes, a disassembly process occurred, leading to fluorescence recovery of the conjugated polymer. Therefore, the novel side-chain polypseudorotaxanes could serve as an efficient anion-responsive fluorescent sensor.

Original language	English
Pages (from-to)	2224-2229
Number of pages	6
Journal	Polymer Chemistry
Volume	4
Issue number	7
DOIs	https://doi.org/10.1039/c3py00162h
Publication status	Published - 7 Apr 2013

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abstract = "A linear pillar[5]arene-modified conjugated polymer was synthesized, and novel side-chain polypseudorotaxanes were formed via the host-guest interactions between the pillar[5]arene unit and n-octylpyrazinium salt. Compared with the conjugated polymer which shows strong fluorescence, the polypseudorotaxanes show very weak fluorescence due to the efficient electron transfer from the conjugated backbone to the n-octylpyrazinium cation. Moreover, upon addition of chloride anion to the solution of the side-chain polypseudorotaxanes, a disassembly process occurred, leading to fluorescence recovery of the conjugated polymer. Therefore, the novel side-chain polypseudorotaxanes could serve as an efficient anion-responsive fluorescent sensor.",

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T1 - Pillar[5]arene-based side-chain polypseudorotaxanes as an anion-responsive fluorescent sensor

AU - Sun, Shu

AU - Hu, Xiao Yu

AU - Chen, Dongzhong

AU - Shi, Jianbing

AU - Dong, Yuping

AU - Lin, Chen

AU - Pan, Yi

AU - Wang, Leyong

PY - 2013/4/7

Y1 - 2013/4/7

N2 - A linear pillar[5]arene-modified conjugated polymer was synthesized, and novel side-chain polypseudorotaxanes were formed via the host-guest interactions between the pillar[5]arene unit and n-octylpyrazinium salt. Compared with the conjugated polymer which shows strong fluorescence, the polypseudorotaxanes show very weak fluorescence due to the efficient electron transfer from the conjugated backbone to the n-octylpyrazinium cation. Moreover, upon addition of chloride anion to the solution of the side-chain polypseudorotaxanes, a disassembly process occurred, leading to fluorescence recovery of the conjugated polymer. Therefore, the novel side-chain polypseudorotaxanes could serve as an efficient anion-responsive fluorescent sensor.

AB - A linear pillar[5]arene-modified conjugated polymer was synthesized, and novel side-chain polypseudorotaxanes were formed via the host-guest interactions between the pillar[5]arene unit and n-octylpyrazinium salt. Compared with the conjugated polymer which shows strong fluorescence, the polypseudorotaxanes show very weak fluorescence due to the efficient electron transfer from the conjugated backbone to the n-octylpyrazinium cation. Moreover, upon addition of chloride anion to the solution of the side-chain polypseudorotaxanes, a disassembly process occurred, leading to fluorescence recovery of the conjugated polymer. Therefore, the novel side-chain polypseudorotaxanes could serve as an efficient anion-responsive fluorescent sensor.

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Pillar[5]arene-based side-chain polypseudorotaxanes as an anion-responsive fluorescent sensor

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