| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2024
|
| Presentation Title |
Unravelling the Governing Factors for Cholesteric Liquid Crystal Self-assembly of Polysaccharides |
| Author(s) |
Cecile Chazot, Simona Fine, Eleanor Grosvenor |
| On-Site Speaker (Planned) |
Cecile Chazot |
| Abstract Scope |
Thanks to their earth abundance and their ability to self-assemble in photonic crystals, cholesteric polysaccharides have been investigated as the basis for functional optical nanomaterials. However, the effects of polysaccharide chemistry and solvent-polymer interaction on the formation of the cholesteric phase remain understudied. In this talk, we explain how different thermodynamic and chemical factors influence the self-assembly and optical properties of cholesteric mesophases constructed from suspensions of polysaccharides, such as cellulose ethers. Through a systematic data analysis framework we developed, we elucidate structure-property relationships linking solubility, viscosity, and hydrogen bonding to the cholesteric pitch and resulting optical properties. Then, we discuss how chemical factors such as molecular weight and repeat-unit chemistry affect kinetics of liquid-crystalline self-assembly. These relationships are expected to assist in the large-scale deployment of polysaccharide-based functional materials with direct optical assessment of temperature, mechanical strain, or humidity. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Polymers, Sustainability |