侧链含三联吡啶聚甲基丙烯酸甲酯及其螯合物的制备与磁性能研究

The Synthesis and Magnetic Properties of Metal Complexes of Polymethyl Methacrylate Containing Terpyridine

以4'-(4-羟苯基)-2,2'∶6',2″-三联吡啶为原料合成了均聚物聚[4'-(4-甲基丙烯酰氧基苯基)-2,2'∶6',2″-三联吡啶](Pm Phtpy),并制备了其与Co^(2+)、Ni^(2+)及Nd^(3+)的高分子螯合物Pm Phtpy-Co^(2+)、Pm PhtpyNi^(2+)和Pm Phtpy-Nd^(3+).聚合物及螯合物结构通过核磁共振、红外光谱和GPC进行了表征确证.螯合物Pm Phtpy-Co^(2+)、Pm Phtpy-Ni^(2+)和Pm Phtpy-Nd^(3+)的磁性能测试结果表明:Pm Phtpy-Co^(2+)和Pm Phtpy-Ni^(2+)是有机软铁磁体,Pm Phtpy-Nd^(3+)是有机软亚铁磁体.

Poly[4＇-（ 4-methacryloyphenyl）-2,2＇ ∶ 6＇,2″-terpyridine] and its three complexes Pm Phtpy-Co^2＋,Pm Phtpy-Ni^2＋,Pm Phtpy-Nd^3＋ are synthesized using 4＇-（4-methacryloyphenyl）-2,2＇∶ 6＇,2″-terpyridine as the substrate. Their structures are fully confirmed by ^1H NMR,FT-IR,and GPC. The magnetic behavior is measured as a function of the magnetic field strength at 30 kOe and as a function of temperature（5-300 K）. The magnetic hysteresis loops of the complexes show a typical ＂ S＂ shape at 5 K,which suggested soft ferromagnetic properties.