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Narrowly Distributed Surfactant‐Free Polystyrene Latex with a Water‐Soluble Comonomer
Author(s) -
Qiu Dong,
Cosgrove Terence,
Howe Andrew M.
Publication year - 2005
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200500306
Subject(s) - comonomer , styrene , polystyrene , dispersity , pulmonary surfactant , polymer chemistry , particle size , polystyrene sulfonate , materials science , chemical engineering , polymer , sulfonate , dynamic light scattering , chemistry , copolymer , sodium , nanoparticle , composite material , nanotechnology , pedot:pss , engineering , metallurgy
Summary: The surfactant‐free synthesis of latex polymers of styrene and sodium styrenesulfonate (NaSS) was investigated. The development of size and size distribution of the particles was studied by photo‐correlation spectroscopy (PCS) and transmission electronic microscopy (TEM). The effects of NaSS concentration and the order of addition of reactants were examined in detail. The results showed that the particle size decreases with an increase in the styrene sulfonate concentration. The polydispersity index can be reduced by mixing NaSS with styrene homogeneously before adding initiator, but this leads to a slightly larger mean particle size.TEM image of surfactant‐free polystyrene latex made by the modified method.