tudy of Synthesis and Optical Properties for the Side-Chain Fluorescent Dye Containing Copolymers

• Main Authors: Chia-Ming Chang, 張嘉銘
• Other Authors: Mu-Shin Lin
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/71288508858561177209

碩士 === 國立交通大學 === 應用化學系 === 89 === Chromophores based on styryl dye moiety were synthesized. Free radical copolymerization of chromophores 5/methyl methacrylate(MMA) in molar ratios of 1/20、1/40、1/60、1/80and1/100were prepared. The copolymer composition were determined with UV-Visible spectroscopic analysis. The UV-Visible and PL spectra indicated that the self-quenching increased with increasing concentration of chromophre 5 in the copolymer compositions, leading to decreased fluorescence efficency(Φs/Φ0)、intensity of fluorescence and red shift ofλmax. In donor-acceptor chromophoric systems, the red shift ofλmax was observed which is due to strong donor-acceptor molecular interactions. Narrowing of FWHM was found when bulky side groups were introduced in the copolymer side chain.