电聚合漆酚镝配位聚合物研究

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－Dy~(3+)）,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 结构证明了每个Dy~(3+)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Dy~(3+)与EPU的配位作用，并引起进一 步交联，且镝含量达13.18%，DMTQ，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Dy~(3+)不起敏化作用，EPU与Dy~(3+)配位后 使Dy的特征荧光淬灭。

A Study on Coordination Polymer of Dysprosium-electropolyurushiol

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 Dy 3+ ion is coordinated by hydroxyls from three unit in the EPU molecule. It shows that there is certain coordination between Dy 3+ and electropolyurushiol (EPU) in the coordination polymer, which further leads to cross-linking. Dy 3+ 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.