Synthesis of cationic flocculant by radiation-induced copolymerization of methyl chloride salt of N,N-dimethylaminoethyl methacrylate with acrylamide in aqueous solution. II. Copolymerization at higher monomer concentration

Journal Article · Fri May 01 04:00:00 EDT 1981 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1981.070260514· OSTI ID:6417734

Ishigaki, I; Fukuzaki, H; Okada, T; Okada, T; Okamoto, J; Machi, S

The radiation-induced copolymerization of methyl chloride salt of N,N-dimethylaminoethyl methacrylate with acrylamide was studied to prepare a polymer flocculant that can be handled as a solid. The product obtained in the presence of 5 to 20% water was a solid and could be ground to a powder without drying. In order to obtain a water-soluble polymer at a higher concentration, the effect of various additives on the copolymerization was investigated and found that alcohols bearing a hydrogen atom attached to the tertiary carbon atom effectively inhibit intermolecular crosslinking to give water-soluble polymer. It is suggested that the formation of water-insoluble polymer is predominantly attributable to the crosslinking of polymer chains rather than to the imidation of amide groups. Copolymerization in the presence of isopropyl alcohol as inhibitor of the crosslinking was also studied and compared with that reported previously, which was carried out at a lower monomer concentration without additives.

• Research Organization: Japan Atomic Energy Research Inst., Takasaki-Shi
• OSTI ID: 6417734
• Journal Information: J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 26:5; ISSN JAPNA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLAMIDE
ADDITIVES
ALCOHOLS
AMIDES
CARBOXYLIC ACID ESTERS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COPOLYMERIZATION
CROSS-LINKING
ELECTROMAGNETIC RADIATION
ESTERS
FLOCCULATION
GAMMA RADIATION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
IONIZING RADIATIONS
METHACRYLIC ACID ESTERS
MOISTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POLYMERIZATION
PRECIPITATION
PROPANOLS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
SEPARATION PROCESSES
SOLIDS
SOLUBILITY
WATER