含酯基苯并噻唑衍生物的摩擦膜及热膜化学结构  

Chemical Structure of Tribofilms and Thermalfilms of Benzothiazole Derivatives Containing Ester Group

作　　者：吴华[1] 李晶[1] 任天辉[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《高等学校化学学报》2008年第8期1620-1624,共5页Chemical Journal of Chinese Universities

基　　金：国家'九七三'计划(批准号:2007CB607600);国家自然科学基金(批准号:20472051)资助

摘　　要：制备了两种苯并噻唑衍生物2-苯并噻唑基-巯基硫代乙酸正辛酯(MBTT)和2-苯并噻唑基-巯基乙酸正辛酯(MBTA),并用元素分析和核磁共振谱表征其分子结构.用X光吸收近边结构谱(X-ray absorption near edge structure,XANES)全面地分析了杂环化合物在矿物油和菜籽油中所形成的摩擦膜和热膜的化学态.分析结果表明,在矿物油中,添加剂MBTT和MBTA摩擦反应生成的摩擦膜主要由FeS2组成,而菜籽油中,两种添加剂摩擦反应生成的摩擦膜由FeSO4组成;在两种基础油中,两种添加剂生成的热膜都是由FeSO4组成的.Two kinds of 2-mercaptobenzothiazole derivatives MBTT and MBTA are synthesized, which are characterized by means of element analysis and ^1H NMR. X-ray absorption near edge structure （XANES） spectroscopy was used to analyze the chemical structure of both thermal films and tribofilms. To our knowledge, this would be the first comprehensive study where XANES were used to examine the tribofilms and thermalfilms from heterocyclic compounds. According to the XANES analytic results, in mineral oil, the tribofilms generated from two additives MBTT and MBTA are composed of FeS2. However, in RSO, the corresponding tribofilms are composed of FeSO4. The thermalfilms are composed of FeSO4 in both mineral oil and RSO.

关 键 词：苯并噻唑 X光吸收近边结构谱 摩擦膜 热膜 

分 类 号：O647.2[理学—物理化学]