On the curing reaction of an epoxy resin based on mesogenic naphthalene derivative

A. Mititelu; C. N. Cascaval

Published : 2022-09-01

Vol. 50 No. 11-12 (2005)

On the curing reaction of an epoxy resin based on mesogenic naphthalene derivative

A. Mititelu C. N. Cascaval

Abstract

The curing reaction of diglycidyl ether of 2,7-dihydroxynaphthalene (2,7-DGEDHN), epoxy mesogenic monomer, in the presence of the curing agents, namely, 4,4'-methylene-bis(3-chloro-2,6-diethylaniline) (MCDEA), 2,7-diaminofluorene (DAF) or 2-aminobiphenyl (2-ABP), was studied using differential scanning calorimetry (DSC), optical microscopy under crossed polarizers and wide angle X-ray scattering (WAXS) techniques. The curing reaction of 2,7-DGEDHN/MCDEA mixture led to a product without liquid crystalline properties. The product obtained by the curing reaction of 2,7-DGEDHN/DAF mixture is characterized by a texture of smectic-like structure of Schlieren type. The curing reaction of 2,7-DGEDHN/2-ABP mixture led to an isotrope non-crosslinked product.

Keywords

żywice epoksydowe ; polimery ciekłokrystaliczne ; utwardzanie ; różnicowa kalorymetria skaningowa ; szerokokątne rozpraszanie promieni rentgenowskich ; mikroskopia optyczna ze skrzyżowanymi polaryzatorami epoxy resins ; liquid crystalline polymers ; curing ; differential scanning calorimetry (DSC) ; wide angle X-ray scattering ; optical microscopy under crossed polarizers

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Mititelu, A., & Cascaval, C. N. (2022). On the curing reaction of an epoxy resin based on mesogenic naphthalene derivative. Polimery, 50(11-12), 839–843. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1695

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A. Mititelu

Affiliation
"Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41 A, Iassy -- 700487, Romania

C. N. Cascaval cascaval@icmpp.ro

Affiliation
"Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41 A, Iassy -- 700487, Romania