Synthesis and Properties of Green Sustainable Carbonate-type Nonionics Containing Polyoxyethylene Chains
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概要
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A series of polyoxyethylene surfactants containing carbonate linkages as biodegradable and chemically recyclable segments was designed and synthesized by a green process. A two-step carbonate exchange reaction was used: dimethyl or diphenyl carbonate was reacted with 1-alkanol, and the product was reacted with poly (ethylene) glycol in the presence of a lipase or chemical catalyst. The obtained carbonate-type nonionics exhibited good surface-active properties such as a low critical micelle concentration value and a surface tension lowering action. They were readily biodegraded by activated sludge, furthermore, could be chemical recycled using a lipase.
著者
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Matsumura Shuichi
Department of Architecture, Graduate School of Engineering, the University of Tokyo
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Sato Hiroshi
Department Of Anatomy And Developmental Neurobiology Institute Of Health Biosciences The University
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Banno Taisuke
Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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Tsuda Takayuki
Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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Matsumura Shuichi
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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