Colloid and Polymer Science

, Volume 286, Issue 6, pp 831–836

Synthesis of bifunctional core–shell particles with a porous zeolite core and a responsive polymeric shell

Short Communication

DOI: 10.1007/s00396-008-1847-5

Cite this article as:
Ziesmer, S. & Stock, N. Colloid Polym Sci (2008) 286: 831. doi:10.1007/s00396-008-1847-5

Abstract

The aim of our work is the synthesis and characterization of colloidal core–shell particles with a zeolite core and an environmentally responsive shell. We have synthesized colloidal ZSM-5 zeolite and modified the surface with 3-(trimethoxysilyl)propyl methacrylate in order to introduce double bonds at the surface. The cross-linked polymeric shell was prepared by precipitation polymerization using the functionalized zeolite particles as seeds. We employed thermoresponsive poly(N-isopropylacrylamide) and pH-responsive poly(vinylpyridine) as the polymeric shell, respectively. The temperature- and pH-depending swelling and deswelling of the core–shell particles were characterized with dynamic light scattering techniques. Transmission electron microscopy pictures show the morphology of the synthesized particles. It is proposed that these types of bifunctional core–shell particles could be of use for controlled uptake and release applications and separation of molecules.

Keywords

ZeoliteHydrogelTemperature-responsivepH-responsiveCore–shell particles

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Institute of Inorganic ChemistryUniversity of KielKielGermany