کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
195144 | 459807 | 2006 | 6 صفحه PDF | دانلود رایگان |
Polarized optical microscopy (POM) and differential scanning calorimeter (DSC) techniques are used to study the effect of ZSM-5 molecular sieves on the crystallization mechanism of poly(ethylene oxide) (PEO) in composite polymer electrolyte. POM results show that ZSM-5 has great influence on both the nucleation stage and the growth stage of PEO spherulites. ZSM-5 particles can act as the nucleus of PEO spherulites and thus increase the amount of PEO spherulites. POM and DSC results show that ZSM-5 can restrain the recrystallize tendency of PEO chains through Lewis acid–base interactions and hence decrease the growth speed of PEO spherulites. Room temperature ionic conductivity of PEO–LiClO4-based polymer electrolyte can be enhanced by more than two magnitudes during long time storage with the addition of ZSM-5.
Journal: Electrochimica Acta - Volume 51, Issue 22, 5 June 2006, Pages 4765–4770