Abstract
The small-angle X-ray scattering profile of styrene-isoprene-sulfonated isoprene terpolymer ionomers was studied to clarify the structure of ionic aggregates at ambient temperature as a function of the degree of neutralization of Na or Mg cations. An ionic cluster peak was observed for ionomers with a degree of neutralization greater than 25%. The ionic cluster peak was analyzed by the modified hard sphere model proposed by Yarusso and Cooper [Macromolecules, 1983, 16, 1871], and the size of the ion cluster, the closest approach distance between the clusters, and the average system volume per ion cluster were evaluated by a curve-fitting method. The size of the ion clusters of the ionomer with monovalent Na cation increased with the degree of neutralization, but for divalent Mg cation slightly changed. The number of ion clusters of the styrene-isoprene-sulfonated isoprene ionomer with Na and Mg cations characteristically increased with the neutralization. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 1307–1311, 2000
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Polymer Science Part B: Polymer Physics
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.