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Synthesis of Cationic Polyelectrolytes by Inverse Microemulsion Polymerization
Author(s) -
González Gemma,
Ugalde Jesus M.,
de la Cal José C.,
Asua José M.
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.200900528
Subject(s) - cationic polymerization , copolymer , continuous stirred tank reactor , polymer chemistry , microemulsion , polyelectrolyte , branching (polymer chemistry) , acrylamide , flocculation , polymerization , chemistry , chemical engineering , materials science , polymer , organic chemistry , pulmonary surfactant , engineering , biochemistry
The inverse microemulsion copolymerization of acrylamide and [2‐(acryloyloxy)ethyl]‐ trimethylammonium chloride (Adamquat) was investigated using different reactors (batch, semicontinuous, and CSTR). It was found that formation of long branches through extensive intermolecular chain transfer occurred at low temperature (35 °C). Molecular weights and long branching levels were correlated and decreased as batch > semicontinuous > CSTR. These differences affected the performance of the copolymers as flocculants. Results indicated that successful flocculant should contain a good balance between short and long chains.