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Improved Mechanical Compliance in Bicontinuous Cubic Lyotropic Membranes Based on a Cross-Linking Gemini Monomer via Copolymerization with a Non-Cross-Linkable Analog AITranslate

Lauren N. Bodkin; Patrick Li; Samantha S. Dyer; Zachary A. Krajnak; John J. Malecha; Richard D. Noble; Douglas L. Gin;
University of Colorado; University of Colorado; University of Colorado; University of Colorado; University of Colorado; University of Colorado; University of Colorado
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Publisher: ACS
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Abstract AITranslate

Membrane materials for use in chemical protective garments for the U.S. military should have ≥20% reversible stretch without breaking. Copolymerization of a cross-linking gemini lyotropic liquid crystal (LLC) monomer with controlled amounts of a non-cross-linkable analog allows formation of nanoporous, bicontinuous cubic polymer membranes with higher % strain-at-failure values of ≥20% and lower Young’s modulus values while retaining high water vapor transport. Although chemical warfare agent (CWA) simulant vapor rejection decreases with the reduced cross-link density, increased mechanical pliability was achieved, demonstrating that the mechanical properties of these LLC-based, breathable CWA-barrier materials can be modified in this fashion.

KeyWords AITranslate

liquid crystals lyotropic network bicontinuous cubic crosslink density mechanical properties
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DOI：https://doi.org/10.1021/acsapm.2c01478

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Citation Information:

Membrane materials for use in chemical protective garments for the U.S. military should have ≥20% reversible stretch without breaking. Copolymerization of a cross-linking gemini lyotropic liquid crystal (LLC) monomer with controlled amounts of a non-cross-linkable analog allows formation of nanoporous, bicontinuous cubic polymer membranes with higher % strain-at-failure values of ≥20% and lower Young’s modulus values while retaining high water vapor transport. Although chemical warfare agent (CWA) simulant vapor rejection decreases with the reduced cross-link density, increased mechanical pliability was achieved, demonstrating that the mechanical properties of these LLC-based, breathable CWA-barrier materials can be modified in this fashion.

quote

GB/T 7714-2015 [1] Lauren N. Bodkin, Patrick Li, Samantha S. Dyer, et al. ACS Applied Polymer Materials, 2022(4). DOI:10.1021/acsapm.2c01478.
MLA [1] Lauren N. Bodkin, et al., ACS Applied Polymer Materials, no. 4, 2022, https://doi.org/10.1021/acsapm.2c01478.
APA [1] Lauren N. Bodkin, Patrick Li, Samantha S. Dyer, Zachary A. Krajnak, John J. Malecha, Richard D. Noble, & Douglas L. Gin. (2022). ACS Applied Polymer Materials(4). https://doi.org/10.1021/acsapm.2c01478
IEEE [1] Lauren N. Bodkin, Patrick Li, Samantha S. Dyer, Zachary A. Krajnak, John J. Malecha, Richard D. Noble, and Douglas L. Gin, ACS Applied Polymer Materials, no. 4, 2022, doi: 10.1021/acsapm.2c01478. keywords: {liquid crystals;lyotropic network;bicontinuous cubic;crosslink density;mechanical properties}