首页> 外文期刊>Journal of Surfactants and Detergents >Synthesis and Properties of Gemini-type Cationic Surfactants Containing Carbonate Linkages in the Linker Moiety Directed Toward Green and Sustainable Chemistry
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Synthesis and Properties of Gemini-type Cationic Surfactants Containing Carbonate Linkages in the Linker Moiety Directed Toward Green and Sustainable Chemistry

机译:面向绿色和可持续化学的接头部分中含有碳酸酯键的双子型阳离子表面活性剂的合成与性能

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摘要

Gemini-type cationic surfactants containing carbonate linkages as biodegradable and chemically recyclable segments, consisting of two long-chain alkyl groups, two quaternary ammonium groups and a linker moiety, were designed and synthesized as novel green and sustainable cationics with improved physicochemical and biological activities. The gemini-type cationics containing a carbonate linkage showed lower critical micelle concentration values compared to the corresponding single-type cationics. Also, the gemini-type cationics containing a carbonate linkage in the linker moiety showed strong antimicrobial activities. The biodegradability of the gemini-type cationics was significantly improved when a carbonate linkage was introduced into the linker moiety. The maximum biochemical oxygen demand-biodegradability of the gemini-type cationics containing a carbonate linkage in the linker moiety exceeded 70% after a 28-day incubation. Furthermore, the gemini-type cationics containing both a carbonate linkage and an n-dodecyl group showed a chemical recyclability using a lipase (E.C. 3.1.1.3).
机译:设计和合成了以碳酸酯键为可生物降解和化学可回收链段的双子型阳离子表面活性剂,该表面活性剂由两个长链烷基,两个季铵基和一个连接基组成,被设计和合成为新型绿色和可持续阳离子,具有改善的理化和生物活性。与相应的单一类型阳离子相比,含有碳酸酯键的双子型阳离子显示出较低的临界胶束浓度值。同样,在连接子部分中包含碳酸酯键的双子型阳离子显示出很强的抗菌活性。当将碳酸酯键引入到接头部分中时,双子型阳离子的生物降解性得到显着改善。温育28天后,在连接子部分中包含碳酸酯键的双子型阳离子的最大生化需氧量可生物降解性超过70%。此外,同时具有碳酸酯键和正十二烷基的双子型阳离子显示出使用脂肪酶的化学可回收性(E.C. 3.1.1.3)。

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