不饱和酸钆盐共聚物磁性研究

Study on the Magnetic Property of Gadolinium Salts with Unsaturated Acid

合成了交联型侧链上含钆离子的共聚物聚( 丙烯酸钆- 丙烯酸)P(Gd(AA)3 - co - AA) 和聚( 甲基丙烯酸钆- 甲基丙烯酸)P(Gd(MA)3 - co- MA) .用元素分析、红外光谱和双键含量测定对单体和共聚物进行了表征.变温磁化率测定表明:P(Gd(AA)3 - co- AA) 和P(Gd( MA)3 - co- MA) 在低温下存在反铁磁性相互作用. 电子顺磁共振谱表明甲基对Gd ( Ⅲ)

Cross-linking copolymer P(Gd(AA) 3 -co-AA) and P(Gd(MA) 3 -co-MA) which contain gadolinium ion in side chains were synthesized.Elemental analysis,infrared spectra and double bond content determination show that P(Gd(AA) 3 -co-AA) and P(Gd(MA) 3 -co-MA) feature antiferromagnetism at low temperature(<30 k).Electron spin resonance(ESR)reveals that methyl contributes to super change effect between Gd(Ⅲ) ions.