Enzymatic polytransesterification of aromatic diols was carried out in
anhydrous organic solvents. The protease from Bacillus licheniformis
catalyzed the polytransesterification of a diester of glutaric acid wi
th aromatic diols such as benzenedimethanol. Gel permeation chromatogr
aphy (GPC) provided Mw values of 400-1400 daltons for the aromatic pol
yesters. Bis(2,2,2-trifluoroethyl) glutarate and 1,4-benzenedimethanol
. were used as model compounds to study the influence of aromaticity,
solvent, and water content.