Electrochemistry of polyamidoamine dendrimers ester gel electrolytes
来源期刊：Rare Metals2004年第1期
论文作者：CHEN Hong and MO Zunli) College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou , China) College of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an , China
文章页码：15 - 19
摘 要：<正> This paper described the first example of polyamidoamine dendrimers ester （PAMAM） used as a gel electrolyte with a short-chain polyethylene glycol （MPEG-400） as a plasticizer. The polymer films are solid and sticky. Background cyclic voltammetry （CV） shows a potential window between+0.7 and-0.7 V vs. Ag/AgCl. The voltammetry of ferrocene and 7,7,8,8-tetracyanoquinodimethane （TCNQ） indicates that diffusion coefficients are in the range of 10-8-10-9 cm2/s. Ionic conductivities are approximately 10-6 S/cm. Similar films using dimethyl sulfoxide （DMSO） as a plasticizer instead of MPEG-400 have demonstrated ionic conductivities of 10-4 S/cm and reversible voltammetry. However, UV spectropho-tometry shows that 70% of the DMSO is lost under vacuum, indicating the difficulty in quantifying the DMSO content when exposed to vacuum.
摘要：<正> This paper described the first example of polyamidoamine dendrimers ester （PAMAM） used as a gel electrolyte with a short-chain polyethylene glycol （MPEG-400） as a plasticizer. The polymer films are solid and sticky. Background cyclic voltammetry （CV） shows a potential window between+0.7 and-0.7 V vs. Ag/AgCl. The voltammetry of ferrocene and 7,7,8,8-tetracyanoquinodimethane （TCNQ） indicates that diffusion coefficients are in the range of 10-8-10-9 cm2/s. Ionic conductivities are approximately 10-6 S/cm. Similar films using dimethyl sulfoxide （DMSO） as a plasticizer instead of MPEG-400 have demonstrated ionic conductivities of 10-4 S/cm and reversible voltammetry. However, UV spectropho-tometry shows that 70% of the DMSO is lost under vacuum, indicating the difficulty in quantifying the DMSO content when exposed to vacuum.
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