New crosslinkable polyphenols were designed on the basis of model “urushi” and synthesized by oxidative polymerization of urushiol analogues, phenol derivatives bearing an unsaturated group. The polyphenols were readily cured to give crosslinked polymeric films with high gloss surface.
Enzymatic Synthesis of Tyrosol-Based Phenolipids: Characterization and Effect of Alkyl Chain Unsaturation on the Antioxidant Activities in Bulk Oil and Oil-in-Water Emulsion
作者:Garima Pande、Casimir C. Akoh
DOI:10.1007/s11746-015-2775-4
日期:2016.3
antioxidants. Free fatty acids and fatty acid ethyl esters (substrate molar ratio tyrosol: acyl donor, 1:10) were used as acyl donors and immobilized lipase from Candida antarctica was the biocatalyst (10 %). The phenolipids were isolated and characterized using ESI–MS, 1H‐NMR, and 13C‐NMR. Peroxide value (PV) and para‐anisidine value (p‐AV) were measured to evaluate their antioxidant activities in bulk