| MECHANICAL RELAXATION AND INTERMOLECULAR INTERACTION IN EPOXY RESINS/POLY (ETHYLENE OXIDE) BLENDS CURED WITH PHTHALIC ANHYDRIDE |
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| 引用本文： | 罗筱烈,郑思珣,马德柱,胡克良. MECHANICAL RELAXATION AND INTERMOLECULAR INTERACTION IN EPOXY RESINS/POLY (ETHYLENE OXIDE) BLENDS CURED WITH PHTHALIC ANHYDRIDE[J]. 高分子科学, 1995, 0(2): 144-153 |
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| 作者姓名： | 罗筱烈 郑思珣 马德柱 胡克良 |
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| 作者单位： | Department of Materials Science and Engineering，University of Science and Technology of China，Hefei 230026，Department of Materials Science and Engineering，University of Science and Technology of China，Hefei 230026，Department of Materials Science and Engineering，University of Science and Technology of China，Hefei 230026，Academia Sinica Structure Research Laboratory USTC，Hefei 230026 |
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| 基金项目： | This study is partially supported by the National Natural Science Foundation of China. |
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| 摘 要： | The miscibility of the blend,composed of a bisphenol A epoxy resins (Diglycidyl etherof bisphenol A) (DGEBA) and poly(ethylene oxide) (PEO) and crosslinked by phthalicanhydride (PA) was studied using dynamic mechanical method. Single glass transitiontemperatures intermediate between the two pure components were observed for all blendlevels. The secondary relaxation mechanism should relate to not only diester linkage, butalso hydroxyether structural unit in the system. Fourier transform infrared spectroscopy(FTIR) is applied to study the curing reaction and intermolecular specific interaction of thesystem. The results indicate the PEO participates the crosslinking reaction, accelerates thecuring reaction and make the reaction more perfect. The shifts of the hydroxyl band andcarbonyl band demonstrate the presence of the intermolecular interaction in the curedblend. Moreover, the molecular interaction between the side hydroxyl in the hydroxyetherunits and the ether bond in PEO macromolecules is stronger.
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| 收稿时间： | 1993-12-10 |
MECHANICAL RELAXATION AND INTERMOLECULAR INTERACTION IN EPOXY RESINS/POLY (ETHYLENE OXIDE) BLENDS CURED WITH PHTHALIC ANHYDRIDE* |
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| LUO Xiaolie,ZHENG Sixun,MA Dezhu,HU Keliang. MECHANICAL RELAXATION AND INTERMOLECULAR INTERACTION IN EPOXY RESINS/POLY (ETHYLENE OXIDE) BLENDS CURED WITH PHTHALIC ANHYDRIDE*[J]. Chinese Journal of Polymer Science, 1995, 0(2): 144-153 |
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| Authors: | LUO Xiaolie ZHENG Sixun MA Dezhu HU Keliang |
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| Affiliation: | Department of Materials Science and Engineering; University of Science and Technology of China; Hefei; Academia Sinica Structure Research Laboratory USTC |
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| Abstract: | The miscibility of the blend,composed of a bisphenol A epoxy resins (Diglycidyl etherof bisphenol A) (DGEBA) and poly(ethylene oxide) (PEO) and crosslinked by phthalicanhydride (PA) was studied using dynamic mechanical method. Single glass transitiontemperatures intermediate between the two pure components were observed for all blendlevels. The secondary relaxation mechanism should relate to not only diester linkage, butalso hydroxyether structural unit in the system. Fourier transform infrared spectroscopy(FTIR) is applied to study the curing reaction and intermolecular specific interaction of thesystem. The results indicate the PEO participates the crosslinking reaction, accelerates thecuring reaction and make the reaction more perfect. The shifts of the hydroxyl band andcarbonyl band demonstrate the presence of the intermolecular interaction in the curedblend. Moreover, the molecular interaction between the side hydroxyl in the hydroxyetherunits and the ether bond in PEO macromolecules is stronger. |
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| Keywords: | Crosslinked blend of epoxy resin Miscibility Mechanical relaxation Curing reaction Intermolecular interaction |
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