Journal
EUROPEAN POLYMER JOURNAL
Volume 43, Issue 10, Pages 4114-4122Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2007.07.021
Keywords
reversible addition-fragmentation chain transfer (RAFT) polymerization; mesoporous silica nanoparticle (MSN); core-shell nanostructure; polystyrene
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Reversible addition-fragmentation chain transfer (RAFT) functionalities were anchored to the exterior surface of mesoporous silica nanoparticles (MSNs) without changing the mesoporous structure, RAFT polymerization of styrene was subsequently conducted to graft polystyrene (PSt) onto the exterior surface of MSNs, forming a novel core-shell nanostructure with a mesoporous core and a polymer nanoshell. Fourier transform infrared spectroscopy (FT-IR), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) were used to characterize the produced mesoporous core-shell nanostructure, the results showed that the thickness of the nanoshell increased with the increasing time of polymerization. (C) 2007 Elsevier Ltd. All rights reserved.
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