TY  - JOUR
A1  - Enzenberg, Anne
A1  - Laschewsky, Andre
A1  - Boeffel, Christine
A1  - Wischerhoff, Erik
T1  - Influence of the Near Molecular Vicinity on the Temperature Regulated Fluorescence Response of Poly(N-vinylcaprolactam)
JF  - Polymers
N2  - A series of new fluorescent dye bearing monomers, including glycomonomers, based on maleamide and maleic esteramide was synthesized. The dye monomers were incorporated by radical copolymerization into thermo-responsive poly(N‑vinyl-caprolactam) that displays a lower critical solution temperature (LCST) in aqueous solution. The effects of the local molecular environment on the polymers’ luminescence, in particular on the fluorescence intensity and the extent of solvatochromism, were investigated below as well as above the phase transition. By attaching substituents of varying size and polarity in the close vicinity of the fluorophore, and by varying the spacer groups connecting the dyes to the polymer backbone, we explored the underlying structure–property relationships, in order to establish rules for successful sensor designs, e.g., for molecular thermometers. Most importantly, spacer groups of sufficient length separating the fluorophore from the polymer backbone proved to be crucial for obtaining pronounced temperature regulated fluorescence responses. View Full-Text
KW  - thermo-responsive polymers
KW  - poly(N-vinylcaprolactam)
KW  - lower critical solution temperature
KW  - fluorescent dyemonomers
KW  - naphthalimide
KW  - solvatochromism
KW  - polymeric sensors
KW  - molecular thermometers
Y1  - 2016
U6  - https://doi.org/10.3390/polym8040109
SN  - 2073-4360
VL  - 8
PB  - MDPI
CY  - Basel
ER  - 
TY  - GEN
A1  - Enzenberg, Anne
A1  - Laschewsky, André
A1  - Boeffel, Christine
A1  - Wischerhoff, Erik
T1  - Influence of the near molecular vicinity on the temperature regulated fluorescence response of poly(N-vinylcaprolactam)
N2  - A series of new fluorescent dye bearing monomers, including glycomonomers, based on maleamide and maleic esteramide was synthesized. The dye monomers were incorporated by radical copolymerization into thermo-responsive poly(N-vinyl-caprolactam) that displays a lower critical solution temperature (LCST) in aqueous solution. The effects of the local molecular environment on the polymers' luminescence, in particular on the fluorescence intensity and the extent of solvatochromism, were investigated below as well as above the phase transition. By attaching substituents of varying size and polarity in the close vicinity of the fluorophore, and by varying the spacer groups connecting the dyes to the polymer backbone, we explored the underlying structure-property relationships, in order to establish rules for successful sensor designs, e.g., for molecular thermometers. Most importantly, spacer groups of sufficient length separating the fluorophore from the polymer backbone proved to be crucial for obtaining pronounced temperature regulated fluorescence responses.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 363 
KW  - thermo-responsive polymers
KW  - poly(N-vinylcaprolactam)
KW  - lower critical solution temperature
KW  - fluorescent dyemonomers
KW  - naphthalimide
KW  - solvatochromism
KW  - polymeric sensors
KW  - molecular thermometers
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-400634
ER  -