Abstract
Abstract We have synthesized and characterized poly(siloxane-g-ethylene oxide) containing Li, Na and K 2,6-di-t-butyl phenolates, and studied the effect of steric hindrance on the ionic conductivities. These polymers have a flexible siloxane main chain and the anion source bonded on it, such that only the cation can migrate. The ionic conductivity of lithium, sodium and potassium phenolate was found to be 10−7 − 10−5 s/cm at 30°C. The conductivity of Na and K salts was approximately 102 greater than that of the Li salts. This was accounted for by the improved ion pair separation in the Na and K phenolates due to the steric hindrance of the t-butyl groups. The temperature dependence of ionic conductivity suggests that the migration of ions is controlled by segmental motion of the polymer, since linear curves were obtained in VTF plots.
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 callMore From: Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics
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.
