Preparation of cationic functional polymer latexes and measurement of involatile monomer conversion

• Published in: Journal of applied polymer science Vol. 124; no. 5; pp. 3662 - 3668
• Main Authors: Yang, Yanan, Zhang, Libin, Zhu, Xiaoli, Kong, Xiangzheng
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05-06-2012; Wiley; Wiley Subscription Services, Inc
• Subjects: Ammonium bromides; Applied sciences; Cationic; cationic latex stability; Conversion; Copolymerization; emulsion polymerization; Exact sciences and technology; Flocculating; involatile monomer conversion; Latex; Materials science; Monomers; Organic polymers; particle nucleation; Particle size distribution; Physicochemistry of polymers; Polymers; Polystyrene resins; Preparation, kinetics, thermodynamics, mechanism and catalysts; Particle size; Emulsion copolymerization; Property composition relationship; Quaternary ammonium copolymer; emulsion polymerization; involatile monomer conversion; Experimental study; particle size distribution; Functional polymer; particle nucleation; Latex; cationic latex stability; Preparation; Electrokinetic potential; Kinetics; Methacrylate copolymer; Radical copolymerization; Styrene copolymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.35557

A series of poly(styrene‐co‐methacryloxyethylhexadecyldimethyl ammonium bromide), P(St‐DMHB), cationic particles were prepared by emulsion polymerization using 2,2′‐azobis(2‐methylpropionamide) dihydrochloride as the initiator with different levels of DMHB as the cationic functional comonomer. ζ potential, particle size, and size distribution of the particles were determined. Large discrepancy was observed between the particle size from dynamic light scattering and that from transmission electron microscopy. Results showed that particle size and ζ potentials were closely dependant on DMHB level used. A flocculation process for the cationic latex was established, and a method to estimate DMHB conversion was proposed. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012