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

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.