Synthesis of cationic flocculant by radiation-induced copolymerization of methyl chloride salt of N,N-dimethylaminoethyl methacrylate with acrylamide in aqueous solution

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1979.070240711· OSTI ID:5977410

Okada, T; Ishigaki, I; Suwa, T; Machi, S

The radiation-induced copolymerization of the methyl chloride salt of N,N-dimethylaminoethyl methacrylate (DMAEM-MC) with acrylamide (AAm) was used to prepare a cationic polymer flocculant. The polymerization rate increased with increasing dose rate, polymerization temperature, monomer concentration, and mole fraction of AAm in the monomer mixture. The molecular weight of the copolymer was also found to increase with monomer concentration and mole fraction of AAm, but at high concentration and fraction of AAm, intermolecular crosslinking tends to occur during the polymerization to form water-insoluble copolymer. A water-soluble copolymer having various molecular weights and cationic strengths can be synthesized by selecting suitable reaction conditions; i.e., this radiation process can provide a much higher molecular weight copolymer with a wide range of cationic strength. The flocculation effect was evaluated using sludge from wastewater of sugar manufacture. It was found that the radiation-polymerized copolymer DMAEM-MC-AAm has an excellent flocculation effect.

• Research Organization: Japan Atomic Energy Research Inst., Takasaki
• OSTI ID: 5977410
• Journal Information: J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 24:7; ISSN JAPNA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLAMIDE
AGGLOMERATION
AMIDES
AMINES
AQUEOUS SOLUTIONS
CARBOXYLIC ACID ESTERS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
COPOLYMERS
CROSS-LINKING
DATA
DATA FORMS
DISPERSIONS
DOSE RATES
ELECTROMAGNETIC RADIATION
ESTERS
EXPERIMENTAL DATA
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
IONIZING RADIATIONS
ISOLATED VALUES
KINETICS
METHACRYLIC ACID ESTERS
MIXTURES
MOLECULAR WEIGHT
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTION KINETICS
SALTS
SOLUTIONS
TIME DEPENDENCE
YIELDS