配位交联的NBR/PVC合金的制备及表征  

Preparation and Characterization of Novel NBR/PVC Alloy Crosslinked by Coordinate Bonds

作　　者：李慧[1] 沈飞[1] 吴驰飞[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237

出　　处：《高等学校化学学报》2005年第2期370-372,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 0 473 0 3 1);上海市青年科技启明星计划项目 (批准号 :0 4QMX14 3 2 )资助

摘　　要：The most common way of rubbers for obtaining high performance is vulcanization, by which the linear macromolecules are crosslinked into three-dimensional networks. The rubbers vulcanized by covalent bonds are serious pollutants. There has been an increasing interest in the novel rubbers crosslinked by supramolecular interactions such as hydrogen bonds and ionic bonds because of the supramolecular interactions are reversible and the crosslinked materials are likely to be recycled. In this paper, a series of novel NBR/PVC materials crosslinked with CuSO4 by coordinate bonds were prepared for the first time, and the produced materials have excellent mechanical properties. In this system, the coordinate bonds formed in situ during the heat press process. XPS and SEM results prove that there are really crosslinks by coordinated bonds between the polymers and the CuSO4 particles. The characterizations of mechanical properties, crosslink densities and the temperature of glass transition all showed that degree of crosslink and the performance of the coordinated materials could be adjusted controllably.The most common way of rubbers for obtaining high performance is vulcanization, by which the linear macromolecules are crosslinked into three-dimensional networks. The rubbers vulcanized by covalent bonds are serious pollutants. There has been an increasing interest in the novel rubbers crosslinked by supramolecular interactions such as hydrogen bonds and ionic bonds because of the supramolecular interactions are reversible and the crosslinked materials are likely to be recycled. In this paper, a series of novel NBR/PVC materials crosslinked with CuSO_4 by coordinate bonds were prepared for the first time, and the produced materials have excellent mechanical properties. In this system, the coordinate bonds formed in situ during the heat press process. XPS and SEM results prove that there are really crosslinks by coordinated bonds between the polymers and the CuSO_4 particles. The characterizations of mechanical properties, crosslink densities and the temperature of glass transition all showed that degree of crosslink and the performance of the coordinated materials could be adjusted controllably.

关 键 词：NBR/PVC合金 配位键 交联 X射线光电子能谱 

分 类 号：O631[理学—高分子化学]