Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)
- 2006.10a
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- Pages.85-85
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- 2006
The Formation of Metal Nanoparticles in pH-responsive Block Copolymers and Hydrogels
- Anastasiadis, S.H. (Institute of Electronic Structure and Laser, Foundation for Research and Technology) ;
- Vamvakaki, M. (Institute of Electronic Structure and Laser, Foundation for Research and Technology) ;
- Palioura, D. (Institute of Electronic Structure and Laser, Foundation for Research and Technology) ;
- Spyros, A. (Department of Chemistry, University of Crete)
- Published : 2006.10.13
Abstract
The micellization behavior and the metal-nanoparticle formation in PDEAEMA-b-PHEGMA double hydrophilic block copolymers are investigated. The hydrophobic PDEAEMA block is pH-sensitive: at low pH it can be protonated and it becomes hydrophilic, leading to molecular solubility, whereas at higher pH micelles are formed; the behavior is studied by DLS, NMR and AFM. In these micellar nanoreactors, metal nanorystals nucleate and grow upon reduction with sizes in the range of a few nm's as observed by TEM and XRD. Similarly, metal nanocrystals can be formed within pH-sensitive microgels (
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