ビニルピロリドンとアクリル酸メチルをモノマーとするコテロマー型界面活性剤の合成とその洗剤ビルダーとしての応用 : 特殊型界面活性剤の研究 (第14報)

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Radical telomerization was carried out using vinylpyrrolidon and methyl acrylate as monomers and 1-dodecanthiol. Benzene was used as the solvent and α, α-azobisisobutyronitrile, as the initiator. The synthesized telomers (Ls-VPr-MA series) were treated with alkaline solvent to give various saponificated products. The cmc and chelating values of these telomers increased and lime soap dispersion power, orange OT solubilization and anti-redeposition ability decreased inversely with the degree of saponification. Surface tension and CaCO<SUB>3</SUB> dispersion ability attained a maximum at 50 mol% saponification.<BR>The detergency of the detergent made from Ls-VPr-MA series telomers, builders and LAS or soap decreased as the degree of saponification increased. This tendency was particularly pronounced for the soap detergent system and polyester test fabric. In regard to the effects of the functional group of the telomers on detergency, the pyrrolidone and methoxycarbonyl group combination was considered far superior to individual carboxyl, carbamoyl, and pyrrolidone groups or their combination. The Ls-VPr-MA-Na telomers showed the strongest detergency effect at the degree of polimerization (DP) 10.<BR>Detergency of the soap containing Ls-VPr-MA telomers was superior to the commercial lime soap dispersion agent, and Ls-VPr-MA telomers was effective when present at 5, 10% in the detergent.
社団法人日本油化学会の論文