Novel Class of Organic-Inorganic Nanohybrids from Functionalized Silsesquioxane-Based Nanoparticles and Micelles of Poly(n-butyl acrylate)-block- Poly(acrylic acid)

摘要

The self-assembly of stimuli-responsive amphiphilic block copolymers has attracted great interest in academia as well as in industry due to their potential applications as drug delivery systems, nanocontainers, stabilizers of emulsion polymerizations and reagents for removal of pollutant of water. Their corresponding interpolyelectrolyte complexes (IPECs) and organic-inorganic hybrids offer the possibility to fine-tune their physico-chemical and structural properties as they may respond on external stimuli, e.g. pH, temperature, salinity. Well-defined amphiphilic diblock copolymers poly(n-butyl acrylate)-block-poly (acrylic acid) (PnBAx-b-PAAy, with x = 90, 100 and y= 100, 150, 300) has been recently shown to spontaneously self-assemble in aqueous solution under the formation of monodisperse micelles.