Nanoparticle-induced morphological transformation in block copolymer-based nanocomposites

Area of Science:

• Materials Science
• Nanotechnology
• Polymer Science

Background:

• Hybrid nanocomposites with ordered nanoparticles offer unique properties for advanced applications.
• Precise control over nanoparticle distribution in these materials remains a fabrication challenge.

Purpose of the Study:

• To demonstrate a simple method for fabricating hybrid nanocomposites with controlled nanoparticle distribution and morphology.
• To investigate the structural evolution of these nanocomposites as a function of nanoparticle concentration.

Main Methods:

• Block copolymer-based nanocomposites were synthesized.
• Nanoparticle concentration was systematically varied.
• Grazing-incidence transmission small-angle X-ray scattering (GITT-SAXS) and atomic force microscopy (AFM) were employed for structural analysis.

Main Results:

• Well-ordered nanoparticles with diverse morphologies were successfully obtained by tuning nanoparticle concentration.
• A morphological transformation was observed, transitioning from perforated lamellae to in-plane cylinder arrangements.
• The study revealed the structural evolution pathway in response to varying nanoparticle loading.

Conclusions:

• Adjusting nanoparticle concentration provides an effective and straightforward approach to fabricating functional hybrid nanocomposites.
• The demonstrated method enables precise control over nanoparticle organization and resulting material morphology.
• These findings facilitate the development of advanced materials for electronics and energy harvesting devices.