Abstract
Sodium and zinc salts of ethylene-methacrylic acid (5.4 mol %) copolymer (EMAA-xNa(or Zn)-yH 2 O, where x and y are degree of neutralization and molar ratio of H 2 O to COONa, respectively) were studied. The dielectric relaxations of EMAA and EMAA-0.6Zn, whose water absorption is usually small, were scarcely affected by water uptake. On the other hand, the dielectric relaxations of EMAA-xNa, particularly highly neutralized sodium salts, sensitively responded to water uptake. The results indicated that three water molecules per sodium cation form a primary hydration shell and that the excess waqter molecules are absorbed around that shell. It is concLuded that the ionic clusters are probably transformed into a structure reminiscent of an inverse micelle upon water absorption
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.
