聚氧乙烯链封端的聚酰胺-胺树状聚合物的性质与应用  

Properties and Application of the PEO-terminated Groups Poly (amidoamine) Dendrimers

作　　者：彭晓春[1] 彭晓宏[2] 林裕卫[2] 赵建青[2] 

机构地区：[1]吉首大学化学化工学院,湖南吉首416000 [2]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《精细化工》2010年第7期715-719,共5页Fine Chemicals

基　　金：湖南省自然科学基金资助项目(06JJ2067);吉首大学博士科研基金资助项目(jsdxkyzz200701)~~

摘　　要：研究了聚氧乙烯链封端的非离子型聚酰胺-胺树状聚合物的热稳定性以及在造纸助留和催化剂载体上的应用。结果表明,该类树状聚合物具有较好的热稳定性,温度低于300℃无明显热分解行为,最大的热分解温度均为400℃。助留性能测试表明,M4.0G与P44复配双元助留体系(摩尔比1∶23.22),造纸助留率为89.2%,比空白造纸助留率分别提高了18.3%。纸样的物理机械特性:撕裂指数、撕裂强度、耐破指数、耐破强度和抗张指数比空白纸样分别提高了8.6%、1.5%、35.5%、29.6%和4.3%。TEM测试表明:以聚氧乙烯大单体(PEO-A)链封端的聚酰胺-胺树状聚合物样品封装的钯金属纳米粒子单分散性较好,粒径分布在0.75～2.4nm。In this paper,in order to terminate the polyoxyethylene chain of nonionic poly（amideamine） dendrimers,the thermal stability, the retention in the paper and the catalyst carrier application were investigated. The results showed that：the dendrimers have a good thermal stability,at 300℃ they had been almost no significant thermal decomposition behavior. The largest thermal decomposition temperature occurred in the vicinity of 400℃. Retention performance test showed that M4.0G and P44 mixture dual retention system （ molar ratio 1：23.22） retention rate 89.2% , compared with a blank pattern of retention rates increased 18.3%. Paper samples of physical mechanical properties of tear index, tear strength, bursting index, tensile strength and breaking resistance index was higher than the blank pattern,which increased 8.6% , 1.5% ,35.5% ,29.6% and 4.3% respectively. TEM tests show that the PEO-terminated groups poly （amidoamine） dendrimers samples of palladium metal nanoparticles embedded monodispersed the better particle size distribution range of 0.75 - 2.4 nm.

关 键 词：聚酰胺-胺树状聚合物 聚氧乙烯 造纸助留 纳米催化剂载体 造纸化学品 

分 类 号：TQ314.2[化学工程—高聚物工业]