电聚合漆酚镝配位聚合物研究  

A Study on Coordination Polymer of Dysprosium-electropolyurushiol

作　　者：肖荔人[1] 高锋[1] 唐洁渊[1] 章文贡[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《化学学报》2003年第8期1338-1342,共5页Acta Chimica Sinica

基　　金：国家自然科学基金 (No.50 2 72 0 1 4 );福建省自然科学重大基金 (No.2 0 0 1F0 0 5);福建省教委 (No.K2 0 0 75)资助项目

摘　　要：根据漆酚结构特点和稀土元素的电子结构特殊性 ,研究电聚合漆酚 (EPU)与氯化镝反应生成配位聚合物 (EPU Dy3 + ) .采用FT IR ,元素分析 ,XPS ,荧光光谱 ,DMTA ,DTA TG等手段对其进行表征 ,探讨其结构与性质 .元素分析等测定结果证明了每个Dy3 + 分别与EPU分子中 3个链节单元的羟基发生配位 ,从而得到配位聚合物的结构 ,证实了配合物中存在着Dy3 + 与EPU的配位作用 ,并引起进一步交联 ,且镝含量达 13 18% .DMTA ,DTA TG分析结果表明玻璃化转变温度和耐热性能均有所提高 .荧光光谱表明 ,EPU对Dy3 + 不起敏化作用 ,EPU与Dy3 +According to the structural characteristics of urushiol and particular electronic structure of rare earth elements, the dysprosium-electropolyurushiol coordination polymer obtained by the reaction of dysprosium chloride with electropolyurushiol was studied. The coordination polymer was characterized by FT-IR, elemental analysis, XPS, fluorescence spectrum, DMTA and DTA-TG. Its composition and structure were identified. The results of elemental analysis indicate that each Dy3+ ion is coordinated by hydroxyls from three unit in the EPU molecule. It shows that there is certain coordination between Dy3+ and electropolyurushiol (EPU) in the coordination polymer, which further leads to cross-linking. Dy3+ content in the polymer reaches up to 13.18%. DMTA and DTA-TG analyses show that the glass transition temperature and heat resistance are considerably greater than those of EPU. The fluorescence spectrum shows that electropolyurushiol has no-sensitization effect to dysprosium and the coordination makes dysprosium characteristic fluorescence quenched.

关 键 词：电化学聚合 漆酚镝配位聚合物 荧光淬灭 结构表征 荧光光谱 

分 类 号：O631[理学—高分子化学]