Abstract
Dehydration during temperature-induced phase separation in D 2O solutions of poly(vinyl methyl ether) (PVME), poly( N-isopropylmethacrylamide) (PIPMAm) and poly( N-isopropylacrylamide) (PIPAAm) was followed from time dependences of NMR spin–spin relaxation times T 2 of HDO. Both the time characterizing the exclusion of the water from mesoglobules (manifested by the increase in T 2 values) and the induction period which precedes the increase in T 2 values, increased in the order PVME < PIPMAm < PIPAAm. For D 2O solutions of PIPMAm/PVME (or PIPMAm/PIPAAm) mixtures a direct connection between the state of the mesoglobules (hydrated or dehydrated) formed by the component with lower LCST (PVME, PIPAAm) and the temperatures of the phase transition of the PIPMAm component was established by NMR spectroscopy.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
