STUDY OF THE REACTION MECHANISM OF THE COPPER CHELATE WITH DGEBA USING DSC

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GHAEMY M; ROSTAMI A.A.; KHOSHNAM H.

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Paper Information

Journal: IRANIAN POLYMER JOURNAL Year:1999 | Volume:8 | Issue:3 Page(s): 183-191

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Title

STUDY OF THE REACTION MECHANISM OF THE COPPER CHELATE WITH DGEBA USING DSC

Author(s)

GHAEMY M | ROSTAMI A.A. | KHOSHNAM H. | Issue Writer Certificate

Keywords

EPOXY RESINS

CURING

COPPER

MECHANISM

DSC

Abstract

The reaction mechanism of metal-containing and complex compound with epoxy oligomer of diglycidyl ether of bisphenol A (DGEBA) was studied using dynamic DSC technique, it is shown that cure reaction of the epoxy oligomers with copper acetate proceeds at two stages: through the coordination of the cation with the epoxy group, and through ionic polymerization at high temperatures. The mechanism of curing of DGEBA with the copper chelate depends on the equilibrium process of dissociation of the chelate which, in turn, depends not only on the temperature of curing but also on the concentration of the hardener. At the dissociation temperature of the hardener, the polymerization proceeds according to ionic mechanism. Hardening of the epoxy oligomers due to interaction of the epoxy groups with the unconnected amine group predominates at higher temperatures or at higher concentrations of the hardener. At tow temperatures and small concentrations of the hardener, the polymerization proceeds according to the catalytic ionic mechanism.

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APA: Copy

GHAEMY, M, ROSTAMI, A.A., & KHOSHNAM, H.. (1999). STUDY OF THE REACTION MECHANISM OF THE COPPER CHELATE WITH DGEBA USING DSC. IRANIAN POLYMER JOURNAL (ENGLISH), 8(3), 183-191. SID. https://sid.ir/paper/529213/en

Vancouver: Copy

GHAEMY M, ROSTAMI A.A., KHOSHNAM H.. STUDY OF THE REACTION MECHANISM OF THE COPPER CHELATE WITH DGEBA USING DSC. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 1999;8(3):183-191. Available from: https://sid.ir/paper/529213/en

IEEE: Copy

M GHAEMY, A.A. ROSTAMI, and H. KHOSHNAM, “STUDY OF THE REACTION MECHANISM OF THE COPPER CHELATE WITH DGEBA USING DSC,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 8, no. 3, pp. 183–191, 1999, [Online]. Available: https://sid.ir/paper/529213/en

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