Open Access

ARTICLE

Synthesis and Characterization of Pyridine-containing Epoxy: H-bonds Distribution and Thermomechanical Performances

ZHAO JUN^a, LIU AIQIN^a, ZHOU HONG^a, LUO JUN^b,*, AND LIU YUAN^b,*

a Shanghai Space Propulsion Technology Research Institute, No. 1777, Zhongchun Road, Minhang District, Shanghai 201100 (P. R. China).
b Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province, Guiyang University, Guiyang 550005 (P. R. China).

* Corresponding Authors: e-mail: ,

Journal of Polymer Materials 2020, 37(1-2), 29-42. https://doi.org/10.32381/JPM.2020.37.1-2.3

Abstract

Heteroatoms (N, O, and F) and hydrogen groups are important elements for forming the H-bonds. It is well known that a large number of hydrogen groups are formed after curing reaction of epoxy. However, literatures about epoxy resins containing heteroaromatic ring and the H-bonds after cure reaction of the epoxy resins are seldom published. To bridge the gap, a kind of new epoxy monomer containing pyridine ring (EMP) has been synthesized in this work, andit is further cured by 4,4-diaminodiphenyl methane (DDM). The properties of cured EMP/ DDM are evaluated by DSC, DMA, and static contact angle measurement. Moreover, the formation and the role of H-bonds in EMP/DDM are characterized by temperature-dependent FT-IR. The results show that the nitrogen heteroatom in pyridine ring effectively involves in the H-bonds and contributes a lot to the thermo-mechanical performances of cured EMP/DDM. We hope that the results presented in this work can work as a meaningful guide for utilization of the H-bonds to regulate the properties of epoxy resin.

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Keywords

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