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Title: Assembly of polythiophenes on responsive polymer microgels for the highly selective detection of ammonia gas

Abstract

For this study, a class of smart composite materials based on the assembly of conjugated polymers on responsive polymer microgels has been prepared. We have chosen poly(3-((2-(2-methoxyethoxy)ethoxy)methyl)-thiophene) as the model conjugated polymer and an ammonia-responsive microgel of phenoxazinium-functionalized poly(N-isopropylacrylamide-co-propargyl acrylate) as the model template. Under this design, the composite materials can combine the electrical conductivity of the conjugated polymers and the ammonia recognisability of the ammonia-responsive polymer microgels; the cooperation of these properties allows the reversible control of electrical conductivity by ammonia gas. Those composite materials can not only adapt to ammonia gas, but also convert changes in the concentration of ammonia into conductance, allowing the electrical detection of ammonia gas with high selectivity. This makes the composite materials different from the conductive polymer platforms reported previously, which may also respond to non-ammonia gases and the response induced by non-ammonia gases is close to that induced by ammonia gas. Using these composite materials as sensing materials for the electrical detection of ammonia gas, the detection limit can reach as low as 1.1 ppb. Finally, these features enable their use for the electrical detection of ammonia in breath.

Authors:
 [1];  [1];  [1];  [2];  [3];  [4];  [1]
  1. Xiamen Univ. (China). State Key Lab. for Physical Chemistry of Solid Surfaces. Collaborative Innovation Center of Chemistry for Energy Materials. The Key Lab. for Chemical Biology of Fujian Province. Dept. of Chemistry
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
  4. The City Univ. of New York, Staten Island (United States). Dept. of Chemistry and The Center for Engineered Polymeric Materials of College of Staten Island
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation of China; Natural Science Foundation for Distinguished Young Scholars of Fujian Province (China); University of Ministry of Education of China; CUNY Advanced Science Research Center (ASRC) (United States)
OSTI Identifier:
1261288
Grant/Contract Number:  
AC05-00OR22725; 91227120; 21274118; 21574107; 20923004; 2014J06006; NCET-13-0506; J1310024
Resource Type:
Accepted Manuscript
Journal Name:
Polymer Chemistry
Additional Journal Information:
Journal Volume: 7; Journal Issue: 18; Journal ID: ISSN 1759-9954
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Chang, Aiping, Peng, Yahui, Li, Zezhou, Yu, Xiang, Hong, Kunlun, Zhou, Shuiqin, and Wu, Weitai. Assembly of polythiophenes on responsive polymer microgels for the highly selective detection of ammonia gas. United States: N. p., 2016. Web. doi:10.1039/C5PY02014J.
Chang, Aiping, Peng, Yahui, Li, Zezhou, Yu, Xiang, Hong, Kunlun, Zhou, Shuiqin, & Wu, Weitai. Assembly of polythiophenes on responsive polymer microgels for the highly selective detection of ammonia gas. United States. doi:10.1039/C5PY02014J.
Chang, Aiping, Peng, Yahui, Li, Zezhou, Yu, Xiang, Hong, Kunlun, Zhou, Shuiqin, and Wu, Weitai. Tue . "Assembly of polythiophenes on responsive polymer microgels for the highly selective detection of ammonia gas". United States. doi:10.1039/C5PY02014J. https://www.osti.gov/servlets/purl/1261288.
@article{osti_1261288,
title = {Assembly of polythiophenes on responsive polymer microgels for the highly selective detection of ammonia gas},
author = {Chang, Aiping and Peng, Yahui and Li, Zezhou and Yu, Xiang and Hong, Kunlun and Zhou, Shuiqin and Wu, Weitai},
abstractNote = {For this study, a class of smart composite materials based on the assembly of conjugated polymers on responsive polymer microgels has been prepared. We have chosen poly(3-((2-(2-methoxyethoxy)ethoxy)methyl)-thiophene) as the model conjugated polymer and an ammonia-responsive microgel of phenoxazinium-functionalized poly(N-isopropylacrylamide-co-propargyl acrylate) as the model template. Under this design, the composite materials can combine the electrical conductivity of the conjugated polymers and the ammonia recognisability of the ammonia-responsive polymer microgels; the cooperation of these properties allows the reversible control of electrical conductivity by ammonia gas. Those composite materials can not only adapt to ammonia gas, but also convert changes in the concentration of ammonia into conductance, allowing the electrical detection of ammonia gas with high selectivity. This makes the composite materials different from the conductive polymer platforms reported previously, which may also respond to non-ammonia gases and the response induced by non-ammonia gases is close to that induced by ammonia gas. Using these composite materials as sensing materials for the electrical detection of ammonia gas, the detection limit can reach as low as 1.1 ppb. Finally, these features enable their use for the electrical detection of ammonia in breath.},
doi = {10.1039/C5PY02014J},
journal = {Polymer Chemistry},
number = 18,
volume = 7,
place = {United States},
year = {2016},
month = {4}
}

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