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Surface‐initiated atom transfer radical polymerization (ATRP) of styrene from silica nanoparticles under UV irradiation
Author(s) -
Liu Peng,
Tian Jun,
Liu Weimin,
Xue Qunji
Publication year - 2004
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1331
Subject(s) - styrene , atom transfer radical polymerization , nanoparticle , irradiation , materials science , polymerization , polymer chemistry , polymer , photochemistry , grafting , yield (engineering) , radical polymerization , chemical engineering , chemistry , copolymer , nanotechnology , composite material , physics , nuclear physics , engineering
Diethyldithiocarbamyl‐modified silica nanoparticles were prepared and used as macroinitiator for the surface‐initiated atom transfer radical polymerization (SI‐ATRP) of styrene under UV irradiation. Well‐defined polymer chains were grown from the nanoparticle surfaces to yield particles composed of a silica core and a well‐defined, densely grafted outer PS layer with a mass ratio of styrene to silica, or percentage grafting, of 276.3% after an UV irradiation time of 5 h. Copyright © 2004 Society of Chemical Industry