The effect of EPIDA units on the conductivity of poly(ethylene glycol)–4,4′-diphenylmethane diisocyanate-EPIDA polyurethane electrolytes
作者： Shao-Ming Lee , Chuh-Yung Chen , Cheng-Chien Wang , Yao-Hui Huang
DOI: 10.1016/S0013-4686(02)00736-3
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摘要: Abstract Novel thermoplastic polyurethanes with chelating groups were synthesized from 4,4′-diphenylmethane diisocyanate (MDI), poly(ethylene glycol) (PEG), and EP-IDA. Differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FT-IR), impedance (IS) used to monitor changes in the morphology of these concentration lithium perchlorate (LiClO 4 ) dopants. Adding salt significantly FTIR spectrum polyurethane, indicating an interaction between cation within urethane group group. The soft segment T g increases LiClO concentration, as determined by DSC, that solubility host polyurethane groups. IS shows bulk conductivity reaches a maximum is increased. One investigated electrolytes has ionic high ∼10 −6 S cm −1 at room temperature.
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