“…Pripol™ 1009 (FAD, 98.7% dicarboxylic acid, 1% tricarboxylic acid) was kindly supplied by Croda. 2,5-diamino-2,5-dideoxy-1,4-3,6-dianhydroiditol (isoidide diamine, IIDA, P95%) was synthesized by Wageningen UR Food and Biobased Research [17,18]. Solvents were obtained from Biosolve in AR grade.…”