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Emulsion polymerization of vinyl chloride, 2 potassium persulfats decomposition in the presence of PVC latex
Author(s) -
Georgescu CeciliaSperanta,
Sarbu Adriana,
Butucea Victor
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910470129
Subject(s) - potassium persulfate , vinyl chloride , emulsion polymerization , chemistry , decomposition , aqueous solution , polymerization , polymer chemistry , polymer , adsorption , sodium dodecyl sulfate , emulsion , potassium , sodium , reaction rate constant , chemical engineering , kinetics , copolymer , organic chemistry , physics , engineering , quantum mechanics
The decomposition rate of potassium persulfate (KPS) in aqueous solutions, in the presence of sodium dodecyl sulfate (SDS) and poly(vinyl chloride) latex (PVC) was studied. The dissolved SDS increases the decomposition rate constant (k d ) while the SDS aggregation as micella and/or its adsorption on the polymer hydrophobic surface results in a decreasing k d . The emulsifier ‐ free surface of the polymer particles increases the decomposition rate. A reaction mechanism based on emulsifier ‐ emulsifier and emulsifier ‐ polymer hydrophobic interactions is put forward.