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α-Aminophosphonate Derivatives for Enhanced Flame Retardant Properties in Epoxy Resin

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journal contribution
posted on 2021-01-01, 00:00 authored by Melissa Kate Stanfield, J Carrascal, Luke HendersonLuke Henderson, D J Eyckens
This work demonstrates the introduction of various α-aminophosphonate compounds to an epoxy resin system, thereby improving flame retardance properties. The α-aminophosphonate scaffold allows for covalent incorporation (via the secondary amine) of the compounds into the polymer network. This work explores the synergistic effect of phosphorus and halogens (such as fluorine) to improve flame retardancy. The compounds were all prepared and isolated in analytical purity and in good yield (95%). Epoxy samples were prepared, individually incorporating each compound. Thermogravimetric analysis showed an increased char yield, indicating an improved thermal resistance (with respect to the control sample). Limiting oxygen index for the control polymer was 28.0% ± 0.31% and it increased to 34.6% ± 0.33% for the fluorinated derivative

History

Journal

Materials

Volume

14

Issue

12

Article number

3230

Pagination

1 - 10

Publisher

MDPI

Location

Basel, Switzerland

ISSN

1996-1944

eISSN

1996-1944

Language

eng

Publication classification

C1 Refereed article in a scholarly journal