IR study of hydrogen bonding in novel liquid crystalline epoxy/DGEBA blends

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Abstract

The hydrogen bonding of LCE/DGEBA blend was studied using FT-IR. IR spectra of hydroxyl region and carbonyl region were investigated according to the content of LCE. IR spectra of LCE/DGEBA blend before and after curing were compared. Most hydroxyl group in DGEBA rich blends formed intermolecular or intramolecular hydrogen bonding after curing, while free hydroxyl group was present in LCE rich blends. Intramolecular hydrogen bonding was popular in DGEBA rich blends due to the conformational reason. Most carbonyl group was hydrogen bonded with hydroxyl or amine group after curing and the fraction of hydrogen bonded carbonyl was high in DGEBA rich blends.

Original languageEnglish
Pages (from-to)439-445
Number of pages7
JournalPolymer Bulletin
Volume38
Issue number4
DOIs
StatePublished - Apr 1997
Externally publishedYes

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