High fluorescence intensity poly(aryl ether ketone)s containing tetraphenylethylene moieties: preparation, characterization and fluorescent properties. Issue 87 (5th September 2016)

• Record Type: Journal Article
• Authors: Li, Feng; Luan, Jiashuang; Zhang, Shuling; Luo, Yuchao; Du, Yinlong; Gao, Cong; Wang, Guibin
• Is Part Of: RSC advances. Volume 6:Issue 87(2016)
• Page Start: 84133
• Page End: 84138
• Publication Date: 2016-09-05
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra13998a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : PAEK with tetraphenylethylene groups and relationships between fluorescence intensity and temperature. Abstract : A novel monomer containing tetraphenylethylene-(2, 6-difluorophenyl)(4-(3-(4-1, 2, 2-triphenyl vinyl)phenoxy)propyl)phenyl)methanone (2F-TPE) was designed and synthesized by reaction of (4-(3-bromopropyl)phenyl)(2, 6-difluorophenyl)methanone and 1-(4-hydroxyphenyl)-1, 2, 2-triphenylethene. A series of high fluorescence intensity poly(aryl ether ketone) copolymers containing tetraphenylethylene (TPE–PAEK) were prepared, which is the first report of preparing PAEK featuring tetraphenylethylene groups by polycondensation. The fluorescence and thermal properties of TPE–PAEK were characterized using fluorescence spectrophotometer, differential scanning calorimetry and thermogravimetric analysis respectively. The results indicated that tetraphenylethylene-based copolymers possessed high fluorescence intensity at a low concentration both in solids and in water/THF mixtures. TPE–PAEK still presented strong fluorescence intensity at elevated temperature up to 90 °C. In addition, TPE–PAEK possess excellent thermal stability.