Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases
Hybrids comprising cellulose nanocrystals (CNCs) and percolated networks of single-walled carbon nanotubes (SWNTs) may serve for the casting of hybrid materials with improved optical, mechanical, electrical, and thermal properties. However, CNC-dispersed SWNTs are depleted from the chiral nematic (&...
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2021
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oai:doaj.org-article:5b2acfe5bf2441a4a07a49408689c94b2021-11-25T18:32:07ZSurfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases10.3390/nano111130592079-4991https://doaj.org/article/5b2acfe5bf2441a4a07a49408689c94b2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3059https://doaj.org/toc/2079-4991Hybrids comprising cellulose nanocrystals (CNCs) and percolated networks of single-walled carbon nanotubes (SWNTs) may serve for the casting of hybrid materials with improved optical, mechanical, electrical, and thermal properties. However, CNC-dispersed SWNTs are depleted from the chiral nematic (<i>N</i>*) phase and enrich the isotropic phase. Herein, we report that SWNTs dispersed by non-ionic surfactant or triblock copolymers are incorporated within the surfactant-mediated CNC mesophases. Small-angle X-ray measurements indicate that the nanostructure of the hybrid phases is only slightly modified by the presence of the surfactants, and the chiral nature of the <i>N*</i> phase is preserved. Cryo-TEM and Raman spectroscopy show that SWNTs networks with typical mesh size from hundreds of nanometers to microns are distributed equally between the two phases. We suggest that the adsorption of the surfactants or polymers mediates the interfacial interaction between the CNCs and SWNTs, enhancing the formation of co-existing meso-structures in the hybrid phases.David AttiaEvgenee YekymovYulia ShmidovYael Levi-KalismanOrit MendelsonRonit BittonRachel Yerushalmi-RozenMDPI AGarticleCNCsSWNTschiral-nematic phaseco-existing networksChemistryQD1-999ENNanomaterials, Vol 11, Iss 3059, p 3059 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
CNCs SWNTs chiral-nematic phase co-existing networks Chemistry QD1-999 |
| spellingShingle |
CNCs SWNTs chiral-nematic phase co-existing networks Chemistry QD1-999 David Attia Evgenee Yekymov Yulia Shmidov Yael Levi-Kalisman Orit Mendelson Ronit Bitton Rachel Yerushalmi-Rozen Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| description |
Hybrids comprising cellulose nanocrystals (CNCs) and percolated networks of single-walled carbon nanotubes (SWNTs) may serve for the casting of hybrid materials with improved optical, mechanical, electrical, and thermal properties. However, CNC-dispersed SWNTs are depleted from the chiral nematic (<i>N</i>*) phase and enrich the isotropic phase. Herein, we report that SWNTs dispersed by non-ionic surfactant or triblock copolymers are incorporated within the surfactant-mediated CNC mesophases. Small-angle X-ray measurements indicate that the nanostructure of the hybrid phases is only slightly modified by the presence of the surfactants, and the chiral nature of the <i>N*</i> phase is preserved. Cryo-TEM and Raman spectroscopy show that SWNTs networks with typical mesh size from hundreds of nanometers to microns are distributed equally between the two phases. We suggest that the adsorption of the surfactants or polymers mediates the interfacial interaction between the CNCs and SWNTs, enhancing the formation of co-existing meso-structures in the hybrid phases. |
| format |
article |
| author |
David Attia Evgenee Yekymov Yulia Shmidov Yael Levi-Kalisman Orit Mendelson Ronit Bitton Rachel Yerushalmi-Rozen |
| author_facet |
David Attia Evgenee Yekymov Yulia Shmidov Yael Levi-Kalisman Orit Mendelson Ronit Bitton Rachel Yerushalmi-Rozen |
| author_sort |
David Attia |
| title |
Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| title_short |
Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| title_full |
Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| title_fullStr |
Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| title_full_unstemmed |
Surfactant-Mediated Co-Existence of Single-Walled Carbon Nanotube Networks and Cellulose Nanocrystal Mesophases |
| title_sort |
surfactant-mediated co-existence of single-walled carbon nanotube networks and cellulose nanocrystal mesophases |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/5b2acfe5bf2441a4a07a49408689c94b |
| work_keys_str_mv |
AT davidattia surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT evgeneeyekymov surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT yuliashmidov surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT yaellevikalisman surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT oritmendelson surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT ronitbitton surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases AT rachelyerushalmirozen surfactantmediatedcoexistenceofsinglewalledcarbonnanotubenetworksandcellulosenanocrystalmesophases |
| _version_ |
1718411017837346816 |