Tuning conditions for the amine-functionalization of carbonyls formed in biobased polyfurfuryl alcohol

Biobased furan resins (furfuryl alcohol based) are functionalized by taking advantage of a side-reaction occurring during its polymerization. The furan ring-opening reactions yields carbonyls which can be functionalized by reaction with primary amines. Light is shed on unexplored parameters impactin...

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Vydáno v:Giant (Oxford, England) Ročník 18; s. 100283
Hlavní autoři: Delliere, Pierre, Guigo, Nathanael
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.06.2024
Elsevier
Témata:
Amine-functionalization
Biobased thermoset
Chemical Sciences
Poly(furfurylalcohol)
Structure/property relations
Structure/property relations
Amine-functionalization
Poly(furfurylalcohol)
Biobased thermoset
ISSN:2666-5425, 2666-5425
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Shrnutí:Biobased furan resins (furfuryl alcohol based) are functionalized by taking advantage of a side-reaction occurring during its polymerization. The furan ring-opening reactions yields carbonyls which can be functionalized by reaction with primary amines. Light is shed on unexplored parameters impacting the properties of PFA/Amine systems. First, PFA/Amines were prepared using PFA resins at conversion degree between 0.3 and 0.95. Overall, high conversion degrees (0.9 and above) are best suited to produce rigid materials. In addition, a precipitation process may be used to reach high Tg biobased materials (145 °C). Finally, the impact of the amines’ basicity on the properties of PFA/Amines was investigated. The results highlighted that PFAs at conversion degrees above 0.9 are little affected by the basicity. However, the properties of PFA functionalized at lower conversion degrees are strongly affected by the bases, i.e. high brittleness. This can be circumvented by limiting the functionalization degree to 0.25 and below. [Display omitted]
ISSN:2666-5425
2666-5425
DOI:10.1016/j.giant.2024.100283