テロマー及び関連化合物の化学及び生物分解性

概要

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The chemical and biochemical degradation of telomers from acrylamide (Ls-CONH2), vinyl pyrrolidone (Ls-VPr), cotelomers of vinyl pyrrolidone and methyl acrylate (Ls-VPr-MA), saponificated telomers of Ls-CONH2 (Ls-COONa), and water soluble polymers and surfactants as controls were studied under aerobic conditions. The above telomers and cotelomers provided excellent detergency when used as detergent builders. The results showed chemical oxygen demand and biochemical oxygen demand to be closely related. Biodegradability was influenced by the radical group of telomers, the order of biodegradability being follows : carboxyl>pyrrolidone>carbamoyl group. The biodegradability of Ls-VPr-MA telomers decrease with increase in the degree of saponification of the telomers, even though the number of carboxyl groups of the telomers increased as the process of saponification proceeded. This was considered to result from mutual action between carboxyl and pyrrolidone groups. The biodegradability of telomers was generally good, exceeding that of poly (acrylamide) and poly (sodium acrylate). The biodegradability of certain telomers was comparable to that of sodium oleate.
社団法人日本油化学会の論文