Report No 1951/AP - Instytut Fizyki JÄ drowej PAN
Report No 1951/AP - Instytut Fizyki JÄ drowej PAN
Report No 1951/AP - Instytut Fizyki JÄ drowej PAN
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NMR RELAXATION IN BIOPOLYMERS (CELLULOSE AND STARCH)<br />
Barbara Blicharska and Magdalena Hyjek<br />
Institute of Physics, Jagellonian University, Kraków, Poland<br />
The interpretation of the proton NMR relaxation data obtained for cellulose and starch<br />
samples are focused on dynamics of various states of “bound water molecules”, which are<br />
always absorbed on biopolymers. The water relaxation reflects the response of polymer<br />
structure to different treatments such as drying, freezing or chemical processing. Assuming<br />
that the dipole-dipole interaction causes mainly the relaxation process, the correlation times<br />
and activation energies of the system were calculated. These parameters can be correlated<br />
with physical and chemical properties of polymers and from this point of view the NMR<br />
relaxation investigation may have a practical aspects.<br />
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