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CNSL, a Promising Building Blocks for Sustainable Molecular Design of Surfactants: A Critical Review

Abstract : Surfactants are crystallizing a certain focus for consumer interest, and their market is still expected to grow by 4 to 5% each year. Most of the time these surfactants are of petroleum origin and are not often biodegradable. Cashew Nut Shell Liquid (CNSL) is a promising non-edible renewable resource, directly extracted from the shell of the cashew nut. The interesting structure of CNSL and its components (cardanol, anacardic acid and cardol) lead to the synthesis of biobased surfactants. Indeed, non-ionic, anionic, cationic and zwitterionic surfactants based on CNSL have been reported in the literature. Even now, CNSL is absent or barely mentioned in specialized review or chapters talking about synthetic biobased surfactants. Thus, this review focuses on CNSL as a building block for the synthesis of surfactants. In the first part, it describes and criticizes the synthesis of molecules and in the second part, it compares the efficiency and the properties (CMC, surface tension, kraft temperature, biodegradability) of the obtained products with each other and with commercial ones.
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https://hal.archives-ouvertes.fr/hal-03582761
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Submitted on : Monday, February 21, 2022 - 2:13:15 PM
Last modification on : Saturday, June 25, 2022 - 9:57:35 AM
Long-term archiving on: : Sunday, May 22, 2022 - 7:21:49 PM

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Audrey Roy, Pauline Fajardie, Benedicte B. Lepoittevin, Jérôme Baudoux, Vincent Lapinte, et al.. CNSL, a Promising Building Blocks for Sustainable Molecular Design of Surfactants: A Critical Review. Molecules, MDPI, 2022, 27 (4), pp.1443. ⟨10.3390/molecules27041443⟩. ⟨hal-03582761⟩

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