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Polymers 2016, 8(10), 365;

Multiresponsive Behavior of Functional Poly(p-phenylene vinylene)s in Water

Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Faculty of Science, Ghent University, Krijgslaan 281 S4, Ghent B-9000, Belgium
Polymer Electronics Research Center, School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
Key Laboratory of Polarized Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200062, China
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, Shanxi, China
Author to whom correspondence should be addressed.
Academic Editors: Alexander Böker and Frank Wiesbrock
Received: 18 August 2016 / Revised: 29 September 2016 / Accepted: 10 October 2016 / Published: 18 October 2016
(This article belongs to the Special Issue Young Talents in Polymer Science)
Full-Text   |   PDF [2107 KB, uploaded 18 October 2016]   |  


The multiresponsive behavior of functionalized water-soluble conjugated polymers (CPs) is presented with potential applications for sensors. In this study, we investigated the aqueous solubility behavior of water-soluble CPs with high photoluminescence and with a particular focus on their pH and temperature responsiveness. For this purpose, two poly(phenylene vinylene)s (PPVs)—namely 2,5-substituted PPVs bearing both carboxylic acid and methoxyoligoethylene glycol units—were investigated, with different amount of carboxylic acid units. Changes in the pH and temperature of polymer solutions led to a response in the fluorescence intensity in a pH range from 3 to 10 and for temperatures ranging from 10 to 85 °C. Additionally, it is demonstrated that the polymer with the largest number of carboxylic acid groups displays upper critical solution temperature (UCST)-like thermoresponsive behavior in the presence of a divalent ion like Ca2+. The sensing capability of these water-soluble PPVs could be utilized to design smart materials with multiresponsive behavior in biomedicine and soft materials. View Full-Text
Keywords: polymeric sensor; water-soluble conjugated polymer; fluorescent sensor; reversible calcium binding; thermoresponsive polymer; upper critical solution temperature polymeric sensor; water-soluble conjugated polymer; fluorescent sensor; reversible calcium binding; thermoresponsive polymer; upper critical solution temperature

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Ryskulova, K.; Rao Gulur Srinivas, A.; Kerr-Phillips, T.; Peng, H.; Barker, D.; Travas-Sejdic, J.; Hoogenboom, R. Multiresponsive Behavior of Functional Poly(p-phenylene vinylene)s in Water. Polymers 2016, 8, 365.

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