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Morphological Study of Dendritic Polymer Templates for the Formation of Inorganic Nanoclusters in Amorphous and Crystalline Polymer Composites

Published

Author(s)

G Kim, F Groehn, B D. Viers, Barry J. Bauer, Eric J. Amis

Abstract

In this study, the morphological behavior of PAMAM dendrimers as stabilizers and templates for the formation of inorganic nanoclusters in amorphous and crystalline polymers is investigated using conventional transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS). For the uniform dispersion in an amorphous interpenetrating polymer networks (IPN), the dendrimers were dissolved in 2-hydroxyethylmethacrylate (HEMA). In a second set of samples, a-w end-functionalized polyethylene glycol (PEG) was linked to the dendrimer terminal amino groups. For the synthesis of metal nanoclusters, the dendrimer-polymer networks swollen in water were placed into aqueous solutions of inorganic metal salts and the metal salts were washed out by water or hydrochloric acid. The network pieces were transferred into a solution of reducing agent, and then washed again with water, and dried in vacuum.TEM and SAXS data demonstrate the formation of nano-clusters in the uniformly dispersed PAMAM dendrimers in PHEMA IPN matrix. When PAMAM dendrimers are linked by crystallized PEG with spherulitic crystal structures, PAMAM dendrimers are incorporated in the inter PEG lamellar crystals with amorphous portion of PEG chains.
Proceedings Title
Electrochemical Society, Meeting | 201st | | Electrochemical Society
Volume
Pt. 1
Conference Dates
May 1, 2002
Conference Title
Electrochemical Society

Keywords

dendrimer, IPN, microscopy, nanoparticle, network, TEM

Citation

Kim, G. , Groehn, F. , Viers, B. , Bauer, B. and Amis, E. (2002), Morphological Study of Dendritic Polymer Templates for the Formation of Inorganic Nanoclusters in Amorphous and Crystalline Polymer Composites, Electrochemical Society, Meeting | 201st | | Electrochemical Society (Accessed June 22, 2024)

Issues

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Created May 1, 2002, Updated February 17, 2017