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  • synthesis, characterization, biodegradability and surfactant properties of bio-sourced lauroyl poly(glycerol-succinate) oligoesters

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1081
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     fully bio-sourced lauroyl oligoester surfactants, based on poly(glycerol-succinate) as polar head group with controllable sizes and topologies were prepared without solvent nor catalyst using a2 + b′b2 + ar and a2 + b′b2 + b′br synthesis approaches. the alkyl chain was either derived from lauric acid or from glycerol α-monolaurate. the oligoester surfactants were characterized by quantitative 13c nmr, acid values and size exclusion chromatography. their surface activity, foamability, foam stability, wetting power, solubilization properties and biodegradability were investigated proving their potential use in a wide set of applications in replacement of petrochemical surfactants. this study underlines the relative impacts of the succinic acid/glycerol monomer ratios and of the strategies of synthesis on the physico-chemical behaviour, on the biodegradability and on the stability of the lauroyl poly(glycerol-succinate) surfactants.

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