生分解性を有する多糖系高分子量ポリカルボン酸塩の設計と合成洗剤用ビルダー性能

抄録

It is indicated that the introduction of biodegradable segments which are accepted as the substrates for the extracellular enzymes of the environmental microbes into the main chain of the synthetic polymer, is one way to design a biodegradable polymer. In this report oligosaccharides were selected as biodegrading segments in the polymer chain and the relations between the content of the oligosaccharide blocks in the polymer chain and the biodegradability as well as functionality were discussed. High molecular weight poly (sodium carboxylate) s containing variable amount of glycopyranose residues as biodegradable segments were prepared by the partial conversion of the vicinal diols of the glycopyranose groups of polysaccharides into the corresponding dicarboxylates via dialdehydes. These polymers containing sugar groups showed an improved biodegradability, suggesting these functional groups to be useful as biodegrading units in the polymer. The biodegradability and builder effects in detergents of these polymers varied inversely with the degree of dicarboxylation. For the design of a biodegradable polymer, biodegradable segments should be incorporated into the polymer chain in such a manner that they are accepted as substrates in the polymer chain by the corresponding enzymes that are contained in environmental microbes.