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TiO2 Nanoparticles Dispersion in Block-Copolymer Aqueous Solutions: Nanoarchitectonics for Self-Assembly and
Valeria Conti Nibali1, Giovanna D'Angelo1, Antonella Arena2
1Department of Mathematical and Computer Science, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno d'Alcontres, 98166 Messina, Italy.
Journal of Functional Biomaterials
|April 25, 2022
Summary
This study reveals optimal conditions for dispersing titanium dioxide (TiO2) nanoparticles within Pluronic F-127 polymer mixtures. Understanding these factors enhances nanoparticle-polymer system design for various applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Homogenous dispersion of nanoparticles in polymer matrices is crucial but challenging for many applications.
- Titanium dioxide (TiO2) nanoparticles offer unique properties but require effective integration into polymers.
Purpose of the Study:
- To investigate factors influencing TiO2 nanoparticle dispersion in Pluronic F-127.
- To understand the relationship between preparation conditions and nanoparticle loading and self-assembly.
Main Methods:
- Preparation of Pluronic F-127 mixtures with varying pH and guest/host ratios.
- Characterization using UV-Vis spectroscopy, dynamic light scattering, infrared spectroscopy, and electrical conductivity measurements.
Main Results:
- Quantitative determination of TiO2 loading using UV-Vis spectroscopy.
- Correlation between nanoparticle content and Pluronic F-127 gelation/micellization behavior observed via dynamic light scattering.
- Interpretation of self-assembly based on infrared and conductivity data.
Conclusions:
- Identified favorable conditions for improved TiO2 nanoparticle dispersion in Pluronic F-127.
- Proposed a strategy for designing functional nanoparticle-polymer systems.
