Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Tuning the thermoresponsiveness of weak polyelectrolytes by pH and light : Lower and upper critical-solution temperature of Poly(N,N-dimethylaminoethyl methacrylate)

Title data

Plamper, Felix A. ; Schmalz, Alexander ; Ballauff, Matthias ; Müller, Axel H. E.:
Tuning the thermoresponsiveness of weak polyelectrolytes by pH and light : Lower and upper critical-solution temperature of Poly(N,N-dimethylaminoethyl methacrylate).
In: Journal of the American Chemical Society. Vol. 129 (28 November 2007) Issue 47 . - pp. 14538-14539.
ISSN 1520-5126
DOI: https://doi.org/10.1021/ja074720i

Official URL: Volltext

Abstract in another language

The presence of multivalent counterions induces an upper critical solution temperature (UCST) in addition to the known lower critical solution temperature (LCST) of poly(N N -dimethylaminoethyl methacrylate) (PDMAEMA). The LCST-type cloud points can be adjusted by pH of the buffer, whereas the UCST-type cloud points can be adjusted by the concentration of trivalent counterions. High pH favors the LCST transition, whereas lower pH extends the UCST-type miscibility gap at constant concentration of trivalent counterions. By use of hexacyanocobaltate(III) as a trivalent counterion, we can even switch off again the UCST-behavior by UV-illumination (photoincluced dissolution).

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: ISI:000251142200005
Keywords: PHASE-BEHAVIOR; WATER; UCST; MICELLES; POLYMERS; LCST
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 15 Apr 2015 08:51
Last Modified: 15 Apr 2015 08:51
URI: https://eref.uni-bayreuth.de/id/eprint/10393