초록 |
In order to improve ionic conductivity, the various approaches and stragies have been employed. The main requirements for high conductivity are ability to solvate ions and a low glass transition temperature affording the facile ion transport. The comb-like polysiloxane has been studied extensively due to the advantages of the highly flexible backbone with the barrier to bond rotation being only 0.8 kJ mol-1 as well as very low glass-transition energies (Tg). However, typically the mechanical strength of polysiloxane was not enough to use as a separator of lihthium battery. To overcome the problem, the interpenetrating network (IPN) matrix has been studied. In this study, to dissolve lithium salts easily, the polysiloxane substituted with cyanide groups in the backbone was introduced in the IPN matrix. The thermal and electrical properties of the polymer have been studied. Other results will be discussed in detail. |