Liang Zhong-xiao
2008
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Journal
Journal of Beijing Institute of Graphic Communication
Abstract
This paper mainly focused on the synthesis and properties of a novel water-soluble phenolic resin with side groups of tertiary amino oxide,which can be possibly applied in thermal imaging applications.Firstly,3-(dimethylamino) propanoic acid was synthesized by the addition reaction of dimethylamine with methyl acrylate followed by the hydrolysis of the adduct.Secondly,3-(dimethylamino) propanoic acid was oxidized with hydrogen peroxide to yield 3-(dimethylamino) propanoic acid oxide;Finally,epoxy phenolic was reacted with 3-(dimethylamino) propanoic acid oxide to give the water soluble modified phenolic resin.Thermal behaviors and thermo-induced solubility change of the prepared resin were investigated.It was found that the modified epoxy phenolic resin could still dissolve in water after being heated at 120℃ for 10 min,and the solubility remained almost unchanged.But upon being heated at the temperature of 140℃,the resin became completely insoluble in water.This modified epoxy phenolic resin had excellent film forming property,and its aqueous coating formed uniform films with strong adhesive attraction to substrate.