Flexible polyfluorinated bis-diazirines as molecular adhesives

Autor:	Chakravarthi Simhadri, Liting Bi, Gino A. DiLabio, Jeremy E. Wulff, Mathieu L. Lepage, Zhipeng Pei, Abbas S. Milani, Mahdi Takaffoli, Stefania F. Musolino
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Chemistry Materials science chemistry Polymer science Covalent bond Molecule General Chemistry Adhesive Polymer Layer (electronics) Surface energy
Zdroj:	Chemical Science
ISSN:	2041-6539 2041-6520
DOI:	10.1039/d0sc06283a
Popis:	Motivated by a desire to develop flexible covalent adhesives that afford some of the same malleability in the adhesive layer as traditional polymer-based adhesives, we designed and synthesized two flexible, highly fluorinated bis-diazirines. Both molecules are shown to function as effective crosslinkers for polymer materials, and to act as strong adhesives when painted between two polymer objects of low surface energy, prior to thermal activation. Data obtained from lap-shear experiments suggests that greater molecular flexibility is correlated with improved mechanical compliance in the adhesive layer. Flexible, highly fluorinated covalent adhesives are synthesized, and are shown to afford comparable C–H insertion efficiency and adhesion strength relative to a rigid analogue, while providing improved mechanical compliance in the adhesion layer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdf749853514694cb83cae226f95d87e https://doi.org/10.1039/d0sc06283a Zobrazit plný text záznamu