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Enantioselective membranes prepared by electrospinning of cellulose tris(3,5-dimethylphenyl carbamate) having various degrees of polymerization: effect of the DP on the morphology

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Abstract

Cellulose phenyl carbamates such as cellulose tris(3,5-dimethylphenyl carbamate) (CDMPC) are known to act as chiral selectors when they are coated or immobilized on silica gels that are packed in the columns for high-performance liquid chromatography (HPLC). Previously, we reported a proof of concept of enantioselective membrane filtration using a nonwoven membrane prepared by electrospinning of the CDMPC synthesized from microcrystalline cellulose Avicel®. In the present work, TECHNOCEL® cellulose fiber samples derived from hardwood are functionalized to synthesize CDMPCs having higher and different degrees of polymerization. The length and width of the cellulose fiber samples are characterized using a MorFi image analyzer. The obtained CDMPCs are electrospun to form nanofibrous membranes and their morphology is studied in relation to the electrospinning process parameters, the degrees of polymerization of the CDMPCs, and their solution concentrations. Liquid-liquid permeation experiments of a racemic compound, (R,S)-1-(1-naphthyl)ethanol, through the CDMPC membranes demonstrate preferable permeation of the (S)-enantiomer. This is supported by theoretical simulations using a molecular docking model that indicates stronger hydrogen bonding and π–π interactions with higher binding energy between CDMPC and the (R)-enantiomer than the (S)-enantiomer.

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Acknowledgements

The authors thank Ms. P. Chaud for the SSA measurements, Ms. S. Ortega Murillo for the WCA measurements, Dr. C. Lancelon-Pin for the SEM observation at the Electronic Microscopy Platform (PMIEL) of the Institut de Chimie Moléculaire de Grenoble (ICMG), and Ms. L. Buon and Mr. E. Bayma for the HPLC analysis at the Chromatography and Sugar Analysis Platform (PCANS) of the CERMAV. The authors are thankful to Drs. K. Mazeau, Y. Nishiyama, and J.-L. Putaux (CERMAV) for fruitful discussions and to Prof. R. Pecora (Stanford University) for helpful suggestions during the writing of this manuscript.

Funding

This study was financially supported by the Institut Carnot PolyNat (ANR-16-CARN-0025-0), the Centre de Recherches sur les Macromolécules Végétales (CERMAV, CNRS), Université Grenoble Alpes ARCANE Bio-driven chemistry and CBH-EUR-GS (ANR-17-EURE-0003).

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Correspondence to Issei Otsuka.

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This article is part of a collection of articles in honor of Dr. Henri Chanzy on the occasion of his 90th birthday. The article was not finished in time to be bound with the rest of the papers in the Special Issue #13, September, 2023.

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Nono-Tagne, S., Navon, Y., Ogawa, Y. et al. Enantioselective membranes prepared by electrospinning of cellulose tris(3,5-dimethylphenyl carbamate) having various degrees of polymerization: effect of the DP on the morphology. Cellulose 31, 2765–2782 (2024). https://doi.org/10.1007/s10570-023-05644-4

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  • DOI: https://doi.org/10.1007/s10570-023-05644-4

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