6533b7d3fe1ef96bd125fe67

RESEARCH PRODUCT

Synthesis of phenol–formaldehyde resole resins in the presence of tetraalkylammonium hydroxides as catalysts

B. KałȩdkowskiJ. Hetper

subject

Aqueous solutionPolymers and PlasticsOrganic ChemistryPotentiometric titrationFormaldehydeThin-layer chromatographyCatalysischemistry.chemical_compoundchemistrySodium hydroxideMaterials ChemistryPhenolOrganic chemistryGas chromatography

description

Abstract We synthesised phenol–formaldehyde resole resins in the presence of tetraalkylammonium hydroxides as catalysts. The activity of these catalysts was compared with the activity of sodium hydroxide. Gas chromatography, thin layer chromatography, 13 C NMR spectrometry, potentiometric titration and a few simple physicochemical methods were used to estimate the composition of the obtained resins and their properties. It was concluded from these studies that tetraalkylammonium hydroxides are active catalysts and the resins obtained in their presence show some interesting properties.

yearjournalcountryeditionlanguage
2000-03-01Polymer
https://doi.org/10.1016/s0032-3861(99)00345-6