以聚醋酸乙烯酯(PVAc)为配体,与CoCl2、NiCl2、FeCl3在四氢呋喃中进行配位反应,生成PVAc-Co(Ⅱ)、PVAc-Ni(Ⅱ)和PVAc-Fe(Ⅲ)配合物. 合成反应在室温下进行,反应时间以1 h为宜. 用电导率法得出PVAc-Co(Ⅱ)、PVAc-Ni(Ⅱ)配合物中金属离子与PVAc链节单元[-CH2-CH(OCOCH3)-]的摩尔比为1∶ 4,而在PVAc-Fe(Ⅲ)中摩尔比可能有1∶ 3至1∶ 6多种. IR和PVAc-Fe(Ⅲ)配合物的XPS测试结果表明,PVAc的CH3COO中羰基氧提供孤对电子与金属离子形成配位键. TG-DTA分析表明,形成配合物后,PVAc的高分子链的热稳定性增加. 推测了产物的可能结构.
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