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Shell Cross‐Linked Micelles as Cationic Templates for the Preparation of Silica‐Coated Nanoparticles: Strategies for Controlling the Mean Particle Diameter
Author(s) -
Li Yuting,
Du Jianzhong,
Armes Steven P.
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800678
Subject(s) - copolymer , methacrylate , micelle , template , cationic polymerization , materials science , nanoparticle , particle size , particle (ecology) , polymer chemistry , chemical engineering , nanostructure , nanotechnology , organic chemistry , polymer , chemistry , composite material , oceanography , geology , aqueous solution , engineering
The mean diameter of poly[2‐(dimethylamino)ethyl methacrylate]‐ block ‐poly[2‐(diisopropylamino)ethyl methacrylate] (PDMA‐PDPA) diblock copolymer micelles can be easily adjusted from 27–155 nm (as measured by DLS) by either selective quaternisation of the PDMA block or by adding PDPA homopolymer prior to micellisation; these self‐assembled nanostructures can be shell crosslinked with 1,2‐bis‐(2‐iodoethoxy)ethane and subsequently used as templates for the preparation of silica‐coated nanoparticles and, ultimately, hollow silica nanoparticles.