A new method for the preparation of silica-polycarbazole composite particles of a core-shell morphology

Anna Peled; Vadim Kotlyar; Jean Paul Lellouche

doi:10.1039/b813482k

A new method for the preparation of silica-polycarbazole composite particles of a core-shell morphology

Anna Peled, Vadim Kotlyar, Jean Paul Lellouche

Department of Chemistry

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Spherical hybrid 149 ± 44 nm-sized silica-carbazole (Cbz) nanoparticles (H-SiO₂-g-Cbz_2% NPs) were prepared using the basic hydrolysis of tetraethoxysilane (TEOS) and of a bifunctional N-carbazolyl-(3-(triethoxysilyl)propyl)butanamide silane in W/O micro-emulsion conditions. In a 2^nd step, surface-localized heterocyclic Cbz groups acted as nucleophilic attachment species towards a polyCOOH poly(dicarbazole- lysine) polymer adlayer generated oxidatively. This sequential process that used an intermediate "nucleophilic nanomaterial phase" resulted in spherical 454 ± 136 nm-sized composite particles possessing a core-shell morphology engineered by design.

Original language	English
Pages (from-to)	268-273
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	19
Issue number	2
DOIs	https://doi.org/10.1039/b813482k
State	Published - 2009

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A new method for the preparation of silica-polycarbazole composite particles of a core-shell morphology

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