九州大学カーボンニュートラル・エネルギー国際研究所（I2CNER)燃料電池研究部門西原正道助教及び水素製造研究部門Aleksandar Staykov助教らの研究グループは、2013年11月17日、『Polymer Physics』のオンライン版に研究成果を発表しました。また、この研究成果は、2014年2月14日発行の『Polymer Science Part B: Polymer Physics』誌に掲載されます。
■概 要
The nanostructure of sulfonated polyimide (SPI)/dihydroxynaphthalene (DHN) derivative charge-transfer (CT) complex hybrid films, which are noble alternative polymer electrolyte membranes (PEMs), is determined by a combined visible spectroscopy/quantum mechanical approach. From the visible spectra of SPI/2,6-dihydroxynaphthalene (2,6-DHN) and 1,5-dihydroxynaphthalene (1,5-DHN) CT complex hybrid films, it is confirmed that these films have different maximum wavelength, although difference of the molecular structure is small. From the calculation based on the experimental result, SPI and DHNs form multiple interactions consisting of not only CT interaction, but also hydrogen bonding in multilayered structures. CT interaction between SPI and DHN defines the DHN position in the SPI matrix, with DHN sitting in the cavity formed between SPIs. The molecular structure of the CT films derived from the multiple and complex interactions can recognize small differences in the structural isomers and bring changes of the optical property.
■論 文
Title: Experimental and theoretical study of charge-transfer complex hybrid polyimide membranes
Authors: Masamichi Nishihara, Liana Christiani, Aleksandar Staykov and Kazunari Sasaki
DOI: 10.1002/polb.23411
Article first published online: 17 November, 2013