Enzyme-catalyzed esterification of pendant carboxylic acid groups
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United States of America Patent
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Aug 2, 2005
Grant Date -
Apr 29, 2004
app pub date -
Oct 23, 2002
filing date -
Oct 23, 2002
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Abstract
A method for enzymatically synthesizing a polymer by combining a preselected quantity of an enzyme, a first reactant selected from polymers with at least one carboxylic acid pendant group, a second reactant selected from alcohols, i.e., polyols, in a reaction vessel; heating the reaction vessel to a preselected temperature; and maintaining the reaction vessel at the preselected temperature for a preselected time with mixing, wherein an esterification reaction results at at least one carboxylic acid pendant group of the polymer with one hydroxyl group from the polyol and results in a modified polymer.
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