期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 5, 期 2, 页码 1446-1456出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b02022
关键词
Chemo-enzymatic synthesis; Nonfeed product valorization; CO2 sequestration; Ferulic acid; Fully biobased NIPU; Thermosets and thermoplastics; Tunable material properties
资金
- Region Champagne-Ardenne
- Conseil Departemental de la Marne
- Reims Metropole
This study presents the syntheses and characterization of renewable nonisocyanate polyurethanes (NIPUs) from a new family of aromatic C-5-cyclocarbonate precursors with different functionalities obtained from nontoxic ferulic acid derivatives by glycidylation and carbonation under high carbon dioxide pressure. Depending on the functionality, linear NIPU chains (thermoplastics) or cross-linked NIPU networks (thermosets) have been obtained. The thermoplastic NIPUs molar masses were determined using SEC and H-1 NMR. The thermal and thermo-mechanical properties of the NIPUs were assessed by DSC, DMA (for thermosets), and TGA to determine the influence of the NIPU chemical structure on its properties. The range of T-g obtained (17-72 degrees C) was efficiently correlated with the degree of freedom and the molar mass of the NIPU repeat unit.
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