Functionality-Oriented Derivatization of Naphthalene Diimide: A Molecular Gel Strategy-Based Fluorescent Film for Aniline Vapor Detection

• DOI: 10.1021/acsami.6b04915
• Publication Date: 2016-06-27T16:14:42Z
• Authors: Jiayun Fan; Xingmao Chang; Meixia He; Congdi Shang; Gang Wang; Shiwei Yin; Haonan Peng; Yu Fang
• Keywords: Diimide

Modification of naphthalene diimide (NDI) resulted in a photochemically stable, fluorescent 3,4,5-tris(dodecyloxy)benzamide derivative NDI (TDBNDI), and introduction the long alkyl chains endowed compound with good compatibility commonly found organic solvents particular superior self-assembly solution state. Further studies revealed that TDBNDI forms gels nine 18 tested at concentration 2.0% (w/v), critical gelation concentrations five eight are lower than 1.0% indicating high efficiency as low-molecular mass gelator (LMMG). Transmission electron microscopy, scanning confocal laser microscopy networked fibrillar structure TDBNDI/methylcyclohexane (MCH) gel. On basis these findings, film was developed via simple spin-coating TDBNDI/MCH gel on glass substrate surface. Fluorescence behavior sensing performance demonstrated this is sensitive selective to presence aniline vapor. Notably, response instantaneous, process fully quickly reversible. This case study demonstrates derivatization stable fluorophores into LMMGs strategy for developing high-performance films.