Monitoring morphological and optical properties on hybrid porous polymer films

ABSTRACT

This work focuses on an optical and morphological comparative study of hybrid functional polymer porous films on glass substrates using the spin coating technique. The covering of these membranes, by a predeposited Zn²⁺ seed layer, was done applying the dip casting technique, which allows the synthesis of a large area and the control of the orientation of ZnO nanoparticles. It was possible to observe changes on the optical properties and surface morphology, which were attributed to both the spatial structure of the macromolecule and their interaction with the inorganic nanoparticles. It was also clear that hybrid porous matrices exhibit a blueshift with decreasing particle size.

KEYWORDS:

• Block copolymers
• hybrid polymer porous films
• morphological properties
• optical properties
• ZnO nanoparticles

Acknowledgments

The authors acknowledge the financial assistance of this work by VRAC grant numbers L215-12 and L216-03 of the Universidad Tecnológica Metropolitana (UTEM), to the Fondo Nacional de Investigación Científica y Tecnológica, FONDECYT Grant 1110836, also to the DAAD grant. Diego P. Oyarzún thank the project PMI–UAB 1308. J. Sánchez thanks Project Basal USA 1555 – Vridei 021741SP_PUBLIC Universidad de Santiago de Chile.