Enzymes in polymer chemistry, 5. Radical polymerization of different 11-methacryloylamino-undecanoic acid esters and oligoesters esterfied by lipases |
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Authors: | Konstantin Pavel Helmut Ritter |
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Abstract: | 11-Methacryloylaminoundecanoic acid ( 1 ) was esterified with the monoalcohols isobutyl alcohol, cyclohexanol, DL -menthol, cholesterol, testosterone and an excess of 12-hydroxylauric acid in the presence of lipase as catalyst. The kinetics of the esterification reactions were followed by 1H NMR spectroscopy and the results were correlated with sterical effects. The monomers were polymerized radically. The monomeric 12-hydroxylauric acid oligoester 11 as well as its homopolymer 12 were characterized by DSC and viscosity measurements. |
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