SYNTHESIS,CHARACTERIZATION,THERMAL ANALYSIS,CONDUCTIVITY AND BAND GAPS OF OLIGO {4-[(2-HYDROXYL-1-NAPHTHYL)METHYLENE]AMINOBENZOIC ACID}

作     者：Ismet Kaya Ali Bilici 

作者机构：Department of ChemistryFaculty of Science and Artsanakkale Onsekiz Mart UniversityTR-17020anakkaleTurkey Department of ChemistryFaculty of ScienceAnkara UniversityTandoganAnkaraTurkey 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学(英文版))

年 卷 期：2009年第27卷第2期

页      面：209-219页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the TUBITAK Grants Commission and Government Planning Organization (GPO) for a research grant [No.TBAG-2451 (104T062) and (GPO2002K 120170-7)] 

主　　题：Oligo {4-[(2-hydroxyi-1-naphthyl)methylene]aminobenzoic acid} Oxidative polycondensation Conductivity Electrochemical and optical band gaps. 

摘      要：The oxidative polycondensation reaction conditions of 4-[(2-hydroxyl-1-naphthyl)methylene]aminobenzoic acid (4-HNMABA) with H2O2,air O2and NaOCl were studied in an aqueous alkaline medium between 40℃and 90℃.The structure of oligo {4-[(2-hydroxyl-1-naphthyl)methylene]aminobenzoic acid} (O-4-HNMABA) was characterized by using1H-NMR,13C-NMR,FT-IR,UV-Vis,size exclusion chromatography (SEC) and elemental analysis *** the optimum reaction conditions,the yield of O-4-HNMABA was found to be 70% for H2O2oxidant,94% for air O2oxidant and 87% for NaOCl *** to the SEC analysis,the number-average molecular weight (Mn),weight-average molecular weight (Mw) and polydispersity index (PDI) values of O-4-HNMABA were found to be 850,1350 and 1.59,using H2O2,1800,2200 and 1.22,using air O2and 2200,3000 and 1.36,using NaOCl,***-DTA analyses showed that O-4-HNMABA was more stable than *** highest occupied molecular orbital,the lowest unoccupied molecular orbital and electrochemical energy gaps (E′g) of 4-HNMABA and O-4-HNMABA were found to be -6.34,-6.56; -2.67,-3.04;3.67 and 3.52 eV,respectively,by cyclic voltammetry (CV).According to UV-Vis measurements,optical band gaps (Eg) of 4-HNMABA and O-4-HNMABA were found to be 3.12 and 3.03 eV,respectively.