Synthesis and Thermal Properties of Resorcinol-Furfural Thermosetting Resin.

ABSTRACT: A mild and effective synthesis of resorcinol-furfural (RF) thermosetting resin was proposed with ethanol as a distinctive solvent, which, as a usually neglected factor, was shown to not only help form a homogeneous reaction system but also observably reduce the energy barriers between the early intermediates and transition states in addition reactions by explicit solvent effects, drawn from theoretical calculation conclusions. Besides, the para-additions on aromatic rings were more dominant than ortho-additions with the same reactants, which affected the final link types of monomers verified by Fourier transform infrared spectroscopy and two-dimensional nuclear magnetic resonance tests. The prepared resin can be assigned to a relatively fast gel speed and a high residual mass (65.25%) afte

SUBMITTER: Liu J 

PROVIDER: S-EPMC7203984 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature