New conducting polymer networks

Thermal and Electrochemical Properties of Solid Polymer Electrolytes Prepared via Lithium Salt-Catalyzed Epoxide Ring Opening Polymerization

“…Lithium salts can be used to poly ize Jeffamines to produce solid polymer electrolytes and these materials can be comb with epoxides to yield novel polymer electrolytes (Scheme 3) [85,87]. Andrieu et al took advantage of that fact that amine groups can improve electrolyte conductivity by interrupting ethylene oxide polymer chains with amine groups as they prepared polymer electrolytes with varying molecular weights using a polypropylenebased Jeffamine, DGEPEG and LiClO4 [28]. These electrolytes were the most conductive Andrieu et al took advantage of that fact that amine groups can improve electrolyte conductivity by interrupting ethylene oxide polymer chains with amine groups as they prepared polymer electrolytes with varying molecular weights using a polypropylene-based Jeffamine, DGEPEG and LiClO 4 [28].…”

“…This material had a conductivity of 4 × 10 −5 S/cm at room temperature and an activation energy (as determined be the Arrhenius method) of 0.187 eV. The electrolyte had a T g of −56 • C and was electrochemically stable up to 4.6 V vs. Li + /Li [28].…”

Ionic Hopping Transport in Chitosan-Based Polymer Electrolytes

“…Solid polymer electrolytes (SPE) have been widely investigated due to its potential applications in many electrochemical devices [1,2]. However, the low ionic conductivity of SPE limits their applications [3,4] and therefore several methods has been proposed to enhance conductivity in polymer electrolyte which includes cross-linking [5], addition of fillers [6] or plasticizers [7] and also using branching co-polymer [8]. However, it has been reported that plasticization is the most effective way to enhance conductivity in a polymer electrolyte system [9].…”