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机构地区:[1]福建师范大学高分子研究所,福建福州350007
出 处:《高分子材料科学与工程》2002年第3期35-38,43,共5页Polymer Materials Science & Engineering
基 金:福建省自然科学基金资助项目 (E9910 0 16 )
摘 要:电化学方法合成的聚合漆酚 (EPU )通过与氯化钇的异丙醇溶液作用 ,得到聚合漆酚钇配合物(EPU- Y3 + )。采用红外光谱、荧光光谱、XPS光电子能谱、动态机械热分析 (DMTA)以及差热 -热重(DTA- TG)等手段进行表征 ,确定其配位结构 ,原于发射光谱 (AES)结果表明 ,钇含量达 8.0 1%。配合物的电阻为 8.32× 10 10 Ω(EPU为 7.9× 10 10 Ω)。由于存在配位作用 ,引起配合物进一步交联 ,因而难溶于绝大多数有机溶剂 ,同时玻璃化转变温度和耐热性能均得到提高。The yttrium electropolyurushiol coordination polymer was obtained by the reaction between yttrium chloride with electropolyurushiol in isopropyl alcohol solution. The coordination polymer was characterized by FT IR, Fluorescence spectrum, XPS, DMTA, DTA TG and AES, and its composition and structure were determined. Each Y 3+ ion is coordinated by hydroxyl from three units in EPU. The content of Y 3+ reached up to 8.01% . Its electric resistance was 8.32 ×10 10 Ω (that of EPU was 7.9 ×10 10 Ω) .Its showed that there is a certain coordination between Y 3+ with electropolyurushiol in the coordination polymer, thus cross link is formed. Therefore the polymer is insoluble in most organic solvents, glass transition temperature increases and heat resistance is enhanced considerably.
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