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Formation of Robust and Adaptive Biopolymers via Non-covalent Supramolecular Interactions
Year:
2022
Authors :
Poverenov, Elena
;
.
Volume :
Co-Authors:

Erez Cohen
Liat Avram
Elena Poverenov

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Biomass-originated materials are the future's next-tier polymers. This work suggests improving mechanical and barrier properties of nature-sourced polymers using non-covalent supramolecular interactions. Polysaccharide chitosan was modified with amino acids via an esterification pathway using a systematic variation of hydrogen bond and aromatic domains (Degrees of substitution 12-49%). These controlled modifications improved stability due to non-covalent interactions, resulting in biopolymers with tailored thermal (decomposition temperature 232-275 °C), mechanical (Young's modulus 540-2667 MPa), and surface properties (roughness 4-40 nm). We purposely selected chitosan and natural amino acids that are already manufactured at scale. The facile synthesis, controlled properties, stimuli-responsive potential, and inexhaustible origin of the raw materials provide the presented findings with the potential to become the method for the formation of high-performance biodegradable alternatives to petroleum-based polymers that can be used in packaging, food, agriculture, and medicine. 

Note:
Related Files :
Biopolymers
Hydrogen bonds
Non-covalent interactions
polysaccharide
Supramolecular chemistry
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More details
DOI :
10.1002/marc.202200579
Article number:
0
Affiliations:
Database:
PubMed
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
62329
Last updated date:
03/10/2022 18:03
Creation date:
03/10/2022 18:03
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Scientific Publication
Formation of Robust and Adaptive Biopolymers via Non-covalent Supramolecular Interactions

Erez Cohen
Liat Avram
Elena Poverenov

Formation of Robust and Adaptive Biopolymers via Non-covalent Supramolecular Interactions

Biomass-originated materials are the future's next-tier polymers. This work suggests improving mechanical and barrier properties of nature-sourced polymers using non-covalent supramolecular interactions. Polysaccharide chitosan was modified with amino acids via an esterification pathway using a systematic variation of hydrogen bond and aromatic domains (Degrees of substitution 12-49%). These controlled modifications improved stability due to non-covalent interactions, resulting in biopolymers with tailored thermal (decomposition temperature 232-275 °C), mechanical (Young's modulus 540-2667 MPa), and surface properties (roughness 4-40 nm). We purposely selected chitosan and natural amino acids that are already manufactured at scale. The facile synthesis, controlled properties, stimuli-responsive potential, and inexhaustible origin of the raw materials provide the presented findings with the potential to become the method for the formation of high-performance biodegradable alternatives to petroleum-based polymers that can be used in packaging, food, agriculture, and medicine. 

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