Complex Self-Assembly of Hyperbranched Polyamidoamine/Linear Polyacrylic Acid in Water and Their Functionalization
writer：Zhang, Y. W.; Huang, W.*; Zhou, Y. F.; Yan, D. Y.*
keywords：Hyperbranched Polyamidoamine/Linear Polyacrylic Acid,Complex Self-Assembly
source：期刊
specific source：J. Phys. Chem. B 2009, 113, 7729. http://pubs.acs.org/doi/pdf/10.1021/jp810221b
Issue time：2009年
This paper studied the complex self-assembly of hyperbranched
polyamidoamine (h-PAMAM) and linear polyaryalic acid (l-PAA) by the
facile mixing of their aqueous solutions. The complex self-assembly
behavior and mechanism were investigated by the optical microscopy,
UV?vis spectrometer, TEM, and ζ potential measurements. Interestingly,
various self-assembled aggregates from micelles to microscaled vesicles
were obtained by adjusting the solution pH. Moreover, the hollow
structure of the vesicles was successfully stabilized by using glutaric
dialdehyde (GDA) to cross-link the PAMAM layer. As expected, the
resulting hollow spheres were able to capture different noble metal ions
from their aqueous solution and reduce them into nanoparticles in situ,
hence forming the hybrid hollow spheres. Such hybrid hollow spheres
might have potential application in catalytic fields.