1,8-亚乙基萘在三氟化硼乙醚-聚乙二醇中的电化学聚合

ELECTROCHEMICAL POLYMERIZATION OF ACENAPHTHENE IN BORON TRIFLUORIDE DIETHYL ETHERATE CONTAINING POLYETHYLENE GLYCOL OLIGOMERS

在三氟化硼乙醚(BFEE)-聚乙二醇(分子量400,PEG400)混合电解质溶液中,1,8-亚乙基萘直接阳极氧化聚合可以获得自支撑聚(1,8-亚乙基萘)膜.单体在三氟化硼乙醚+10%PEG400中的起始氧化电位为0.95 Vversus SCE,远低于单体在0.1 mol.L-1四氟化硼四丁基胺-乙腈溶液中的起始氧化电位(1.38 VversusSCE).同时PEG400的加入可以有效改善单体在三氟化硼乙醚中的溶解性.UV-Vis,FTIR和1H-NMR确定了1,8-亚乙基萘在4,5位聚合,荧光光谱表明固态及可溶聚(1,8-亚乙基萘)膜是蓝色发光材料.

A novel dark brown polyacenaphthene film has been electrodeposited on platinum electrode by direct anodic oxidation of acenaphthene in mixed electrolyte of boron triflouride diethyl etherate （BFEE） and polyethylene glycol oligomers with a molecular weight of 400 （PEG 400）. The oxidation potential of acenaphthene in this medium was initiated at approximately 0.95 V versus SCE, which was much lower than that determined in acetonitrile containing 0.1 mol·L^-1 Bu4NBF4 （ 1.38 V versus SCE ）. The introduction of PEG 400 improved the solubility of the monomer in the mixed electrolytes. The structure of the polymer was investigated by UV-Vis, FTIR and ^1H- NMR. Fluorescent spectral studies indicated that polyacenaphthene film was a blue light emitter both in DMSO solutions and in solid-state.