Abstract
AbstractPolyelectrolyte complexes (PECs) have been prepared by mixing solutions of carboxymethyl starch and diethylethylamino starch at ionic substituent mixing ratios of 0.2, 0.5, and 0.8. The complexes were insoluble in water, although they did swell to some extent. Interactions between ionic groups were examined using turbidity measurements and FTIR spectroscopy. Supernatant turbidity was the lowest when the mixing ratio was equal to 0.5. The degree of carboxylate neutralization as measured by FTIR increased with mixing ratio. Complex formation was completely suppressed when NaCl was present in concentrations greater than approximately 0.10m. These results indicate that complex formation was due to ionic crosslinks between the oppositely charged starch molecules.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.