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Synthesis of cationic flocculants by the inverse microemulsion copolymerization of acrylamide with 60% 2‐acryloxyethyltrimethyl ammonium chloride in the monomer feed. II. Influence of the formulation composition, hydrophilic‐lipophilic balance, starting polymerization temperature, and reaction time

2006; Wiley; Volume: 103; Issue: 1 Linguagem: Inglês

10.1002/app.25069

1097-4628

José R. Ochoa‐Gómez, Francisco Javier Escudero Sanz, Pedro Manuel Sasia Santos, A. Santos García, Elena Díaz de Apodaca, P. Río,

Photopolymerization techniques and applications

Abstract Acrylamide/2‐acryloxyethyltrimethylammonium chloride copolymers in inverse microemulsions, with 60% 2‐acryloxyethyltrimethyl ammonium chloride in the monomer feed and a concentration of active matter of 30% (w/w) as flocculants, were obtained by inverse microemulsion copolymerization. Inverse microemulsion formulations of comonomers, interesting from both technical and economical viewpoints, were polymerized by semicontinuous free‐radical copolymerization with sodium disulfite as the initiator. The influence of the formulation composition, hydrophilic‐lipophilic balance (HLB), starting polymerization temperature, and reaction time on the polymerization and final properties of the products as flocculants was studied. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103:186–197, 2007