TY - JOUR
T1 - Multiresponsive behavior of functional poly(p-phenylene vinylene)s in water
AU - Ryskulova, Kanykei
AU - Gulur Srinivas, Anupama Rao
AU - Kerr-Phillips, Thomas
AU - Peng, Hui
AU - Barker, David
AU - Travas-Sejdic, Jadranka
AU - Hoogenboom, Richard
PY - 2016/10/18
Y1 - 2016/10/18
N2 - 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.
AB - 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.
KW - Fluorescent sensor
KW - Polymeric sensor
KW - Reversible calcium binding
KW - Thermoresponsive polymer
KW - Upper critical solution temperature
KW - Water-soluble conjugated polymer
UR - https://www.scopus.com/pages/publications/84994890766
U2 - 10.3390/polym8100365
DO - 10.3390/polym8100365
M3 - 文章
AN - SCOPUS:84994890766
SN - 2073-4360
VL - 8
JO - Polymers
JF - Polymers
IS - 10
M1 - 365
ER -