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

摘要:

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。结果显示：该类树状聚合物具有较好的热稳定性，300℃以前几乎无重大的热分解行为，最大的热分解温度均发生在400℃附近。助留性能测试表明M4.0G（第四代）助留体系造纸助留率为88.9%，比空白造纸助留率提高了13.5%。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。

Abstract:

Abstract: In this paper, in order to terminated polyoxyethylene chain of non-ionic poly(amideamine) dendrimers thermal stability, and retention in the paper and the catalyst carrier applications. The results showed that: the dendrimers have good thermal stability, 300 ℃ had previously 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 (fourth generation) Retention System retention rate 88.9%, compared with a blank pattern of retention rates increased 13.5%. 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 were increased 8.6%, 1.5%, 35.5%, 29.6% and 4.3%. TEM tests show that the PEO-terminated groups poly(amidoamine) dendrimers samples of palladium metal nanoparticles embedded monodispersed better particle size distribution range of 0.75~2.4nm .