电聚合漆酚镝配位聚合物研究 |
| |
引用本文: | 肖荔人,高锋,唐洁渊,章文贡. 电聚合漆酚镝配位聚合物研究[J]. 化学学报, 2003, 61(8): 1338-1342 |
| |
作者姓名: | 肖荔人 高锋 唐洁渊 章文贡 |
| |
作者单位: | 福建师范大学化学与材料学院,福州,350007 |
| |
基金项目: | 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-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。
|
关 键 词: | 镝 漆酚 荧光猝灭剂 电化学合成 荧光分析 傅里叶变换 红外分光光度法 元素分析 X射线光电子谱法 差热分析 |
修稿时间: | 2002-11-19 |
A Study on Coordination Polymer of Dysprosium-electropolyurushiol |
| |
Affiliation: | College of Chemistry and Material, Fujian NOrmal University |
| |
Abstract: | 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. |
| |
Keywords: | dysprosium urushiol electrochemical polymerization coordination polymer fluorescence quenching |
本文献已被 CNKI 维普 万方数据 等数据库收录! |
| 点击此处可从《化学学报》浏览原始摘要信息 |
|
点击此处可从《化学学报》下载全文 |