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| 论文编号: |
122214O120130285 |
| 第一作者所在部门: |
708组 |
| 中文论文题目: |
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| 英文论文题目: |
Chemical degradation of TGDDM/DDS epoxy resin in supercritical 1-propanol: Promotion effect of hydrogenation on thermolysis
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| 论文题目英文: |
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| 作者: |
严华
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| 论文出处: |
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| 刊物名称: |
Polymer Degradation and Stability
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| 年: |
2013
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| 卷: |
98 |
| 期: |
12 |
| 页: |
2571-2582 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
2.770
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| 摘要: |
Chemical decomposition of an epoxy system made of tetraglycidyl 4,40-diaminodiphenylmethane
(TGDDM) and 4,40-diaminodiphenylsulfone (DDS) in supercritical 1-propanol was investigated under
different reaction temperature and time. The GCeMS results suggested that the epoxy system was
decomposed to the products including aniline, N-propylbenzenamine, and 4,40-diaminodiphenylsulfone.
The change of the products’ yield with time was measured by GC. In addition, the formed chars were
characterized by SEM, elemental analysis, Raman and XRD. The results implied the presence of some
graphite microcrystals and disordered structure in the solid residue. Upon the addition of KOH, the
Guerbet reaction of 1-propanol was promoted to generate more hydrogen. A possible free-radical reaction
mechanism was proposed for the depolymerization of TGDDM/DDS epoxy resin. Hydrogenation of
radicals had a promotion effect on thermolysis of TGDDM/DDS epoxy resin. |
| 英文摘要: |
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| 备注: |
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