@inproceedings{0d55c7df1af34f8482581d89f24c514e,
title = "Synthesis and proton transport property of poly(aspartic acid) thin film on MgO(100) substrate",
abstract = "An enhancement in proton conductivity for poly(aspartic acid)/sodium polyaspartate (P-Asp) by synthesizing thin film on MgO substrate was investigated. The average degrees of polymerization and molecular weight were{\~ }70 and{\~ }9400, respectively. The degree of protonation in the carboxylic acid groups was 10 %. The proton conductivities of the pelletized P-Asp and thin film were 6.4 x 10-4 and 3.4 x 10-3 S cm-1, respectively, under a relative humidity of 70 % and 298 K. The proton conductivity of the thin film was found to be five times higher than that of the pelletized P-Asp. The activation energy for the proton conduction of the pelletized P-Asp was 0.89 eV. The activation energy of P-Asp thin film was smaller than that of the pelletized sample. Application of this phenomenon may lead to a new method for producing highly proton-conductive material.",
author = "Y. Nagao and M. Ando and H. Maekawa and Chang, {C. H.} and F. Iguchi and N. Sata",
year = "2009",
doi = "10.1149/1.3242254",
language = "English",
isbn = "9781615676446",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "51",
pages = "401--406",
booktitle = "ECS Transactions - Solid State Ionic Devices 6 - Nanoionics - 214th ECS Meeting",
edition = "51",
note = "Solid State Ionic Devices 6 - Nanoionics - 214th ECS Meeting ; Conference date: 12-10-2008 Through 17-10-2008",
}