聚氨酯与乙酰丙酮铽复合物的相互作用  

Interaction of Polyurethane and Terbium Acetylacetonate Composite

作　　者：刘新海[1] 赵莹[1] 王笃金[1] 刘智[2] 孙贤育[2] 吴瑾光[2] 徐端夫[1] 

机构地区：[1]中国科学院化学研究所 [2]北京大学化学与分子工程学院

出　　处：《高等学校化学学报》2006年第10期1974-1977,共4页Chemical Journal of Chinese Universities

基　　金：国家'九七三'计划项目(批准号:2003CB615602)资助.

摘　　要：合成了聚氨酯、乙酰丙酮铽及其复合物.红外光谱研究结果表明,铽离子与聚氨酯分子链中的羰基发生了配位作用.力学性能测试结果表明,稀土配合物的加入提高了聚氨酯的拉伸强度和断裂伸长等力学性能.流变性能测试结果显示,乙酰丙酮铽的加入使聚氨酯溶液的粘度增大,表明溶液中两者之间存在明显的相互作用.Polyurethane, terbium acetylacetonate and their composite were synthesized and subsequently characterized by rheology and FTIR spectroscopy. FTIR results indicate that terbium ions coordinated with the carbonyl groups in polyurethane molecular chains. Rheological property measurement shows an increase in the polyurethane solution viscosity, indicating that there exist obvious interactions between lanthanide ions and polyurethane in solution. The mechanical property test indicates that the addition of lanthanide complex enhanced the mechanical performances of polyurethane, such as tensile strength and elongation at break.

关 键 词：聚氨酯 稀土配合物 流变 红外光谱 

分 类 号：O631[理学—高分子化学]