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Antibacterial Cellulose Nanopapers via Aminosilane Grafting in Supercritical Carbon Dioxide

Abstract : In this work, we present an innovative strategy for the grafting of an antibacterial agent onto nanocellulose materials in supercritical carbon dioxide (scCO 2). Dense cellulose nanofibril (CNF) nanopapers were prepared and subsequently functionalized in supercritical carbon dioxide with an aminosilane, N-(6-aminohexyl)aminopropyltrimethoxysilane (AHA-P-TMS). Surface characterization (X-ray photoelectron spectroscopy, contact angle, zeta potential analysis) evidenced the presence of the aminosilane. Results show that the silane conformation depends on the curing process: a non-polycondensed conformation of grafted silane with the amino groups facing outwards was favored by curing in an oven while the curing step performed
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https://hal.archives-ouvertes.fr/hal-03003201
Contributor : Bruno Jean Connect in order to contact the contributor
Submitted on : Tuesday, November 24, 2020 - 3:04:10 PM
Last modification on : Sunday, June 26, 2022 - 12:32:03 AM
Long-term archiving on: : Thursday, February 25, 2021 - 6:05:41 PM

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Bruno Jean, Clémentine Darpentigny, Cécile Sillard, Mathilde Menneteau, Eugénie Martinez, et al.. Antibacterial Cellulose Nanopapers via Aminosilane Grafting in Supercritical Carbon Dioxide. ACS Applied Bio Materials, ACS Publications, In press, ⟨10.1021/acsabm.0c00688⟩. ⟨hal-03003201⟩

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