Characterization of polyepichlorochydrin and copolymers of epichlorochydrin-glycidyl ethers by IR spectroscopy

摘要

The aim of the present work is to prove the possibility of employing IR spectra to characterize the formation of H-bonds as a result of interaction of macromolecules (homopolymers and copolymers) and to establish the most suitable absorbencies for qualitative and quantitative calculation. The indication of H-bonds formation could be taken as Delta nu, the shift of some characteristic absorption bands for C-O-C group, the decrease of the value Delta'(1/2) (Delta'(1/2) = Delta(1/2) C-O-C/Delta(1/2) CH2) where Delta(1/2) is peak width at half height and the absorbance ratio A' = A(3440)/A(max), where A(3440) and A(max) are obtained from the complicate band for -OH group around 3500 cm (-1). The H-bonds were formed between the macromolecules of epichlorohydrin (ECH) homopolymer and copolymers on the basis of ECH and phenylglycidyl ether (PhGE) or butylglycidyl ether (BGE). A good agreement between the chemical structure, the content of oxygen atoms and calculated H-bonds on the basis of IR spectra was found. (C) 2000 Elsevier Science Ltd. All rights reserved. [References: 8]