Temperature‐Responsive Polymers: Chemistry, Properties and Applications

0491353 - ÚMCH 2019 RIV US eng M - Monography Chapter
Spěváček, Jiří
Application of NMR spectroscopy to study thermoresponsive polymers.
Temperature‐Responsive Polymers: Chemistry, Properties and Applications. Hoboken: John Wiley & Sons Ltd., 2018 - (Khutoryanskiy, V.; Georgiou, T.), s. 225-247. ISBN 978-1-119-15778-6
R&D Projects: GA ČR(CZ) GA15-13853S
Institutional support: RVO:61389013
Keywords : thermoresponsive polymer * aqueous solution * hydrogel
OECD category: Polymer science

This chapter discusses the basic principles and application of nuclear magnetic resonance (NMR) methods in the studies of thermoresponsive polymer systems. Formation of compact globular‐like structures at temperatures above the phase transition suggests that NMR spectra of the systems will be affected in direction to NMR spectra of solid‐like systems. Temperature dependences of integrated intensities were often used for characterization of the phase transition in number of thermoresponsive systems. The power of NMR spectroscopy in investigation of temperature‐induced phase transition in solutions of multicomponent polymer systems consists in its ability to provide quantitative information on the behavior of individual polymer components separately. A detailed knowledge of interactions in systems containing various low‐molecular‐weight additives can be important especially in connection with the development of drug release systems based on thermoresponsive polymers. NMR spectroscopy, including relaxation and diffusion measurements, provides also important information on the behavior of water molecules at temperature‐induced phase transition.
Permanent Link: http://hdl.handle.net/11104/0292919