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Composite Poly(vinyl alcohol)-Based Nanofibers Embedding Differently-Shaped Gold Nanoparticles: Preparation and
Andrea Dodero1, Maila Castellano1, Paola Lova1
1Department of Chemistry and Industrial Chemistry, Università degli Studi di Genova, Via Dodecanso 31, 16146 Genoa, Italy.
Polymers
|June 2, 2021
Summary
This study introduces novel poly(vinyl alcohol) nanofibrous mats incorporating gold nanostructures. The shape and size of gold nanostructures significantly influence mat properties, enhancing thermal stability and water resistance for diverse applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Poly(vinyl alcohol) (PVA) is a versatile polymer with numerous applications.
- Gold nanostructures offer unique optical and electronic properties.
- Developing composite materials with enhanced functionalities is a key research area.
Purpose of the Study:
- To prepare and characterize poly(vinyl alcohol) nanofibrous mats containing synthesized gold nanostructures.
- To investigate the influence of gold nanostructure shape and size on the composite mat properties.
- To explore potential applications of these novel composite materials.
Main Methods:
- Single-step electrospinning of PVA and gold nanostructures.
- Chemical synthesis of spherical gold nanoparticles and nanorods using (hexadecyl)trimethylammonium bromide.
- Thermal treatment for mat stabilization.
- Characterization of mat morphology and properties.
Main Results:
- Successfully prepared PVA nanofibrous mats with gold nanoparticles and nanorods.
- Demonstrated that nanostructure shape influences fiber morphology: spherical nanoparticles yield thinner fibers, nanorods yield defect-rich fibers.
- Enhanced thermal stability and water resistance of the composite mats.
- Observed good mechanical properties suitable for handling.
Conclusions:
- The developed composite mats represent a novel platform for various applications.
- Tailoring gold nanostructure characteristics allows control over nanofibrous mat properties.
- The material's handleability and enhanced properties open new application perspectives.
