Enzymatic Method of LC Polyester Synthesis

Usually lipases and proteases from various sources are used for aromatic polyester synthesis in organic solvents. A commercial protease from Bacillus licheniformis can be used effectively for catalyzing transesterification of a diester of terephthalic acid and 

4-butanediol in anhydrous tetrahydrofuran (THE). However, the molecular weight was observed to be very low [56]. 

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