Intrinsic viscosity, surface activity, and flocculation of cationic polyacrylamide modified with fluorinated acrylate

A novel cationic polyacrylamide modified with fluorinated acrylate had been synthesized of acrylamide (AM), methacryloxyethyl trimethylammonium chloride (DMC), and 2-(perfluorooctyl)ethyl acrylate (FEA) by free radical micellar copolymerization in aqueous solution utilizing cetyl trimethylammonium b...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2010-07, Vol.65 (2), p.111-122
Main Authors: Xiaowu, Yang, Yiding, Shen, Peizhi, Li
Format: Article
Language:English
Subjects:
Acrylamide
Applied sciences
Aqueous solutions
Associations
Cations
Cetyltrimethylammonium bromide
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Copolymerization
Copolymers
Exact sciences and technology
Flocculation
Fluorination
Fourier transforms
Free radicals
Hydrocarbons
Jar tests
Kaolin
Organic Chemistry
Organic polymers
Original Paper
Physical Chemistry
Physicochemistry of polymers
Polyacrylamide
Polymer Sciences
Polymerization
Polymers
Polymers with particular properties
Potassium
Potassium persulfate
Preparation, kinetics, thermodynamics, mechanism and catalysts
Saline solutions
Sodium
Soft and Granular Matter
Spectrum analysis
Surfactants
Viscosity
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Summary:A novel cationic polyacrylamide modified with fluorinated acrylate had been synthesized of acrylamide (AM), methacryloxyethyl trimethylammonium chloride (DMC), and 2-(perfluorooctyl)ethyl acrylate (FEA) by free radical micellar copolymerization in aqueous solution utilizing cetyl trimethylammonium bromide (CTAB) as the surfactant and potassium persulfate (KPS)/sodium bisulfite (SBS) as the redox initiator. Some factors affecting synthesis, such as the amount of FEA, CTAB, and KPS, were described. Surface activity and flocculation of the polymer were studied. The results showed that with the incorporation of FEA, the intrinsic viscosity decreased until the modified polymer was not able to dissolve in water; and with the increase of CTAB and KPS, the intrinsic viscosity decreased firstly then increased slowly. The polymer exhibited good surface activity in both water and salt solution. Its flocculation properties were evaluated with kaolin suspensions using a standard jar test. The results demonstrated the superiority of the copolymer over the no-modified cationic polyacrylamide as a flocculant.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-009-0186-0