一顺丁烯二酸异丙酯酰氧基二异丙氧基镝的合成和聚合

Synthesis and Polymerization of Mono(isopropyl maleate-oyloxyl) Diisopropoxyl Dysprosium

用三异丙氧基镝与顺丁烯二酸酐反应合成一顺丁烯二酸异丙酯酰氧基二异丙氧基镝（DM），DM在偶氮二异丁腈（AIBN）引发下通过溶液聚合制得含Dy聚合物（PDM）。聚合动力学研究表明DM聚合活性较低，其聚合反应具有较高的表观活化能（96．3kJ·mol－1），聚合动力学方程为Rp＝kpcDM(1.23)cAIBN(0.82)。获得的PDM是一种热稳定性高、能发射Dy(3+)4F(9/2)→6H(15/2)和4F(9/2)→6H(13/2)特征荧光的聚合物固体材料。

Mono(isopropyl maleate-oyloxyl) diisopropoxyl dysprosium(DM ) was synthesized by thereaction of dysprosium isopropoxide with maleic anhydride. Dy-containing polymer was obtained by the radical polymerization of DM using 2, 2'-azobisisobutyronitrile(AIBN) as an initiator in toluene solution. The kinetic study on the radical polymerization shows that the polymerization of DM is provided with high aPParent activation energy(96. 3 kJ' mol-- I ), that therate Nuation of polymerization can be expressed: R, = k,CDM1'23 C indicating that theactivity of DM is weak for Pollymerization. Study on the properties of Dy-containing polymerindicates that it is a functional polymeric material with excellent heat-stability and strong characteristic fluorescence of Dy3+.