Enzyme-catalyzed polymerizations at higher temperatures: Synthetic methods to produce polyamides and new poly(amide-co-ester)s

Publication year: 2011 Source: Journal of Molecular Catalysis B: Enzymatic, Available online 8 December 2011 Lakshminarayanan Ragupathy, Ulrich Ziener, Rainer Dyllick-Brenzinger, Bernhard von Vacano, Katharina Landfester Novozyme-435 (N-435) catalyzed polycondensation reaction between different aliphatic (oligo)esters and diamines by precipitation polymerization at elevated temperatures yields various particulate polyamides and poly(amide-co-ester)s. The reaction between diethylsebacate (DES) and 1,8-diaminooctane (DAO) at 60 °C in dried toluene leads to a lowMnpolyamide (NMR:Mn = 520 g·molGPC:Mn = 2000 g·molwithMw/Mn = 1.3)

Publication year: 2011 Source: Journal of Molecular Catalysis B: Enzymatic, Available online 8 December 2011 Lakshminarayanan Ragupathy, Ulrich Ziener, Rainer Dyllick-Brenzinger, Bernhard von Vacano, Katharina Landfester Novozyme-435 (N-435) catalyzed polycondensation reaction between different aliphatic (oligo)esters and diamines by precipitation polymerization at elevated temperatures yields various particulate polyamides and poly(amide-co-ester)s. The reaction between diethylsebacate (DES) and 1,8-diaminooctane (DAO) at 60 °C in dried toluene leads to a lowMnpolyamide (NMR:Mn = 520 g·molGPC:Mn = 2000 g·molwithMw/Mn = 1.3)

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Enzyme-catalyzed polymerizations at higher temperatures: Synthetic methods to produce polyamides and new poly(amide-co-ester)s