Synthesis and characterization of organic fluorescence compounds

• Main Authors: Ji-Han Chao, 趙志翰
• Other Authors: Kuang-Sen Sung
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/96908065026086287067

碩士 === 國立成功大學 === 化學系碩博士班 === 93 === Section1 Synthesis of organic dual fluorescence compounds In this study, first prepared the diazonium salt which is synthesized by hydrochloric acid, sodium nitrite and 4-aminobenzonitrile, followed by reaction with 1,4-benzoquinone to produce the product which has C=O functional group. Then, we used the products to react with sodium hydrosulfite to reduce the C=O to OH, followed by alkylation to convert OH to OCH3. We also used 2-aminopyridine, hydrochloric acid, sodium nitrite to synthesize two diazonium salts of another type. One of them had pyridine on two sides of hydroquinone, and the other has pyridine on one side of hydroquinone. All chemicals were characterized by IR, NMR and MS spectrometer. Scetion2 Synthesis and characterization of electro-active starburst block copolymer. In the second part of this study,starburst poly(n-butyl acrylate)s with various branching number were firstly synthesized by (atom transfer radical polymerization) ATRP method using three, six and twelve functional alkyl halides as core molecules. The ω-bromo ends of these star polymers were subsequently modified to generate the same number of hydroxyl groups. Finally, the hydroxyl ends of the star polymers were then esterified with terthiophene acetic acid to form thiophene-capped starburst poly(n-butyl acrylate). The corresponding structures were identified by 1H-NMR. The studies of molecular weight characteristics of these thus-prepared star polymers were performed on 1H-NMR and GPC instruments. The electroactive materials were synthesized by the self-polymerization of the terminal terthiophene rings on the (3-,6-,12-)-armed starburst polymers via oxidative polymerization method. Chemical structure and molecular weight characteristics of these copolymers were studied by IR,NMR, and GPC techniques. The star copolymers were analyzed by UV-vis and IR, which proved the structure and quality of the star copolymers.