Porosity Tuning in Soft-templated Mesoporous Silica: The Influence of Block Copolymer Composition and Concentration.

ABSTRACT: Macroscopic properties of mesoporous metal oxides depend on the mesopore architecture, i.e., the pore size, wall thickness, and pore connectivity. Consequently, rational preparation protocols and deep knowledge of the templating mechanism are required for systematic porosity-property studies and the intentional synthesis of an optimized pore morphology. In this work, we thus prepared a library of 17 poly(ethylene oxide)-block-poly(hexyl acrylate) (PEO-b-PHA) block copolymers of varying PEO and PHA block lengths to quantitatively deduce the effect of the individual block lengths on the mesopore size of the templated silica. The block length of the hydrophobic PHA block in the micelle core showed to enable a pore size tuning between 10 and 80 nm according to electron microscopy

SUBMITTER: Wagner LQ 

PROVIDER: S-EPMC12659430 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature