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Smart Surface of Gold Nanoparticles Fabricated by Combination of RAFT and Click Chemistry
Author(s) -
Zhang Tao,
Zheng Zhaohui,
Ding Xiaobin,
Peng Yuxing
Publication year - 2008
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.200800385
Subject(s) - raft , chain transfer , click chemistry , colloidal gold , reversible addition−fragmentation chain transfer polymerization , nanoparticle , surface modification , nanotechnology , polymer chemistry , materials science , radical polymerization , fabrication , polymerization , poly(n isopropylacrylamide) , fragmentation (computing) , chemical engineering , chemistry , polymer , copolymer , computer science , composite material , medicine , alternative medicine , pathology , engineering , operating system
A simple efficient post‐modification route to the fabrication of hybrid gold nanoparticles with poly( N ‐isopropylacrylamide) (PNIPAm) based on click chemistry is described. The PNIPAm was prepared by reversible addition fragmentation chain transfer radical polymerization (RAFT). The PNIPAm was immobilized onto gold nanoparticles with grafting densities of 5.8 chains · nm −2 by a click reaction. The hybrid gold nanoparticles showed a temperature responsive phenomenon as the temperature changed between 20 and 45 °C.