聚乙烯接枝马来酸锌离聚体溶液性质的研究  

The Solution Behavior of Ionomers Based on Polyethylene Grafted Maleate(Zinc Salt)

作　　者：刘振兴[1] 陈竹筠[1] 席世平[1] 高德[1] 黄月娥[1] 

机构地区：[1]中山大学化学与化学工程学院,广东广州510275

出　　处：《中山大学学报（自然科学版）》2000年第3期59-63,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省自然科学基金资助项目!(96 0 0 0 8)

摘　　要：探索了溶解PE g MAZn离聚体的溶剂体系 ,并研究其溶液粘度行为 .发现该离聚体的粘浓关系与极性聚合物PE g MAH相似 ,即比浓粘度 ηsp/c随浓度的增大分为极稀溶液区和稀溶液区 2个区间 .2个区间内的粘浓关系都呈线性 ,但斜率不同 ,其交会点对应的浓度约为2 0g/L .The selection of mixed solvent systems for polyethylene grafted maleate(zinc salt)ionomers and the viscosity behaviors are investigated.The results indicate that the relationships between the reduced viscosity η sp / c and the concentration are similar for PE g MAZn and its original polymer PE g MAH.The solution properties can be divided into two regions,i e ,extremely dilute and dilute regions.A sharp inflection was observed in the extremely dilute region.The critical contact concentration c ** ,at which the macromolecular coils start to contact and is defined by the cross point of the regions,is about 2 0 g/L.The reduced viscosity changed in a wavy curve as temperature rises.

关 键 词：离聚体 PE-g-MAZn 溶液性质 聚乙烯接枝马来酸锌 

分 类 号：O632.12[理学—高分子化学] TQ325.12[理学—化学]