“…The total content of carboxy and imide groups in the degradation products of AA3Na-A copolymers was determined by the procedure described elsewhere [8]. In this case, a weighed sample of the copolymer was dissolved in 0.1 M NaOH and kept at room temperature for 20 h (during this time the imide groups are hydrolyzed [8], whereas the amide groups remain unchanged), and back titration was carried out according to the procedure reported in [5].…”
Section: Methodsmentioning
confidence: 99%
“…In this case, a weighed sample of the copolymer was dissolved in 0.1 M NaOH and kept at room temperature for 20 h (during this time the imide groups are hydrolyzed [8], whereas the amide groups remain unchanged), and back titration was carried out according to the procedure reported in [5].…”
The kinetics of thermal degradation of commercial samples of copolymers of acrylamide with sodium acrylate of various molecular characteristics in water and 1.5% NaCl aqueous solutions at 40 380oC was studied viscometrically.
“…The total content of carboxy and imide groups in the degradation products of AA3Na-A copolymers was determined by the procedure described elsewhere [8]. In this case, a weighed sample of the copolymer was dissolved in 0.1 M NaOH and kept at room temperature for 20 h (during this time the imide groups are hydrolyzed [8], whereas the amide groups remain unchanged), and back titration was carried out according to the procedure reported in [5].…”
Section: Methodsmentioning
confidence: 99%
“…In this case, a weighed sample of the copolymer was dissolved in 0.1 M NaOH and kept at room temperature for 20 h (during this time the imide groups are hydrolyzed [8], whereas the amide groups remain unchanged), and back titration was carried out according to the procedure reported in [5].…”
The kinetics of thermal degradation of commercial samples of copolymers of acrylamide with sodium acrylate of various molecular characteristics in water and 1.5% NaCl aqueous solutions at 40 380oC was studied viscometrically.
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