A Fluorescent Thermometer Based on a Pyrene-Labeled Thermoresponsive Polymer
-
Pietsch, Christian; Vollrath, Antje; Hoogenboom, Richard; Schubert, Ulrich S.
- Abstract:
- Thermoresponsive polymers that undergo a solubility transition by variation of
the temperature are important materials for the development of ‘smart’ materials. In this
contribution we exploit the solubility phase transition of poly(methoxy diethylene glycol
methacrylate), which is accompanied by a transition from hydrophilic to hydrophobic, for
the development of a fluorescent thermometer. To translate the polymer phase transition
into a fluorescent response, the polymer was functionalized with pyrene resulting in a
change of the emission based on the microenvironment. This approach led to a soluble
polymeric fluorescent thermometer with a temperature range from 11 °C to 21 °C. The
polymer phase transition that occurs during sensing is studied in detail by dynamic
light scattering.
- Year:
- 2010
- Type of Publication:
- Article
- Keywords:
- pyrene; DEGMA; stimuli responsive polymer; lower critical solution temperature LCST; RAFT polymerization; solvatochromism; fluorescent thermometer
- Journal:
- Sensors
- Volume:
- 10
- Pages:
- 7979 - 7990