Enzymes in polymer chemistry, 9. Polymerizable oligoesters from cholic acid via lipase catalyzed condensation reactions |
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Authors: | Olaf Noll Helmut Ritter |
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Abstract: | Regioselective oligocondensation of cholic acid in the 3-position was achieved in organic solution in the presence of a lipase from Candida antarctica. Furthermore, a mixture of cholic acid, 11-methacryloylaminoundecanoic acid and the lipase resulted in the production of a radically polymerizable oligo(cholic acid ester) bearing exactly one methacrylic end group. This new monomer was polymerized radically yielding the corresponding comb-polymers bearing several cholic acid esters at the end of the side chains. |
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