A Non-Hydrolytic Sol-Gel Route to Organic-Inorganic Hybrid Polymers: Linearly Expanded Silica and Silsesquioxanes.

ABSTRACT: Condensation reactions of chlorosilanes (SiCl₄ and CH₃SiCl₃) and bis(trimethylsilyl)ethers of rigid, quasi-linear diols (CH₃)₃SiO-AR-OSi(CH₃)₃ (AR = 4,4'-biphenylene (1) and 2,6-naphthylene (2)), with release of (CH₃)₃SiCl as a volatile byproduct, afforded novel hybrid materials that feature Si-O-C bridges. The precursors 1 and 2 were characterized using FTIR and multinuclear (¹H, ¹³C, ²⁹Si) NMR spectroscopy as well as single-crystal X-ray diffraction analysis in case of 2. Pyridine-catalyzed and non-catalyzed transformations were performed in THF at room temperature and at 60 °C. In most cases, soluble oligomer

SUBMITTER: Krupinski K 

PROVIDER: S-EPMC10138140 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature