Structural and adhesion properties of poly(ethyl 2-cyanoacrylate) post-cured at different temperatures and times

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Title: Structural and adhesion properties of poly(ethyl 2-cyanoacrylate) post-cured at different temperatures and times
Authors: Estan-Cerezo, Gabriel | Alonso, Diego A. | Martín-Martínez, José Miguel
Research Group/s: Catálisis Estereoselectiva en Síntesis Orgánica (CESO) | Adhesión y Adhesivos
Center, Department or Service: Universidad de Alicante. Departamento de Química Orgánica | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Síntesis Orgánica
Keywords: Poly(ethylcyanoacrylate) | Thermal post-cure | Adhesion | Unzipping mechanism | DSC | TGA
Knowledge Area: Química Orgánica | Química Inorgánica
Issue Date: 1-Feb-2019
Publisher: Taylor & Francis
Citation: Journal of Adhesion Science and Technology. 2019, 33(4): 329-345. doi:10.1080/01694243.2018.1509502
Abstract: The structure and properties of poly(ethyl 2-cyanoacrylate)s (pECNs) cured at 25 °C during 24 hours, and post-cured at different temperatures (45-90 °C) and times (2-6 hours) were studied. Irrespective of the post-cure conditions, pECN was not fully polymerized and two different structures of different molecular weights and topographies were obtained. The post-cure decreased the shear strength values in joints made with aluminum and ethyl cyanoacrylate due to the decrease in the percentage of higher molecular weight polymeric chains and the formation of new short polymeric chains by unzipping de-polymerization mechanism, both contributed to decrease the mechanical properties. On the other hand, the post-cure changed the morphology of pECN because of nano-spheres were produced by curing at 25 °C which were not present after post-cure at 90 °C.
Sponsor: This work was supported by the University of Alicante [VIGROB-001, VIGROB-173] and the Spanish Ministerio de Economía y Competitividad [CTQ2015-66624-P].
ISSN: 0169-4243 (Print) | 1568-5616 (Online)
DOI: 10.1080/01694243.2018.1509502
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Informa UK Limited, trading as Taylor & Francis Group
Peer Review: si
Publisher version:
Appears in Collections:INV - LAA - Artículos de Revistas
INV - CESO - Artículos de Revistas

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