# THE DECOMPOSITION OF BISPHENOL A DIGLYCIDYL ETHER/ALICYCLIC AMINE HARDENED NETWORKS IN NEAR-CRITICAL WATER

> Title: THE DECOMPOSITION OF BISPHENOL A DIGLYCIDYL ETHER/ALICYCLIC AMINE HARDENED NETWORKS IN NEAR-CRITICAL WATER Page Range: p.809-816 Author(s): Liu Yuyan; Li Li; Wu Songquan; Liu Yuting File size: 406K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer...

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Published: 2012-09-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: THE DECOMPOSITION OF BISPHENOL A DIGLYCIDYL ETHER/ALICYCLIC AMINE HARDENED NETWORKS IN NEAR-CRITICAL WATER**
 Page Range: p.809-816
 Author(s): Liu Yuyan; Li Li; Wu Songquan; Liu Yuting
 File size: 406K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc20-9&JournalID=101743&JIP=) (subscribers only)
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 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 20
 Issue No: No.9

**Abstract**
 The decomposition of bisphenol A diglycidyl ether/alicyclic amine hardened networks in near-critical water was studied in this paper. It is possible to decompose thermosetting epoxy resin completely at 260 degrees C for 1 h with 1 g/5 ml feedstock ratio. The decomposition rate of epoxy resin increased with an increase in reaction temperature. The decrease in sample size led to higher decomposition rate, and the catalysts NH4Cl and H2SO4 had the higher positive effect on the decomposition rate. Thermogravimetry analysis (TGA) showed that thermal decomposition was not the primary factor for the collapse of networks in the temperature range studied. Gas ChromatographyMass Spectrometry (GC-MS) showed the main components of the soluble decomposed compounds were bisphenol A, hydroxybenzene, olefin and ketone compounds and their content varied during the reaction. The hydrolysis of ether bond was regarded as the key factor in the process of decomposition reaction of bisphenol A diglycidyl ether/alicyclic amine hardened networks. 17 Refs.

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