Abstract
The dynamical behavior of water molecules in hydroxypropyl cellulose (HPC)–water mixtures was observed by the pulse field gradient (PFG) NMR method. For a decay curve of the spin-echo signal intensity of a water proton peak, a contribution of the diffusional motion of free water is observed. The water content dependence of the NMR relaxation time and diffusion coefficient of free water shows characteristic behavior reflecting the isotropic-cholesteric phase transition of HPC. These parameters of free water obtained by PFG-NMR correlate strongly with the fast dynamics of free water observed in the GHz region, and this correlation is explained by dynamics of water constrained by the geometrical self-similarity formed by the HPC molecules.
Sign-in/Register to access full text options 
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.
