Structural Arrangement of Hexadecyltrimethoxysilane on Diatomaceous Earth.

ABSTRACT: Nano-microscale morphologies of hexadecyltrimethoxysilane (HDTMS), an alkylsilane, adsorbed on diatomaceous earth (DE) were probed with temperature-modulated differential scanning calorimetry (TMDSC), thermogravimetric analysis (TGA), X-ray spectroscopy, and Fourier transform infrared spectroscopy. Initially, smaller amounts of HDTMS adsorbed resulted in a disorganized film with a decomposition temperature higher than that observed for bulk HDTMS due to the molecules being directly attached to the surface. FTIR and TMDSC results confirmed that at smaller adsorbed amounts, the molecules were largely amorphous and became more crystalline at larger adsorbed amounts. At very small adsorbed amounts, it was not possible to characterize the alkylsilane at submonolayer coverage, but at larger adso

SUBMITTER: Perera HJ 

PROVIDER: S-EPMC12530050 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature