Abstract:Enzymatic polymerization of catechol was conducted using laccase enzyme in Sodium Dodecylbenzenesulfonate Micellar Solutions. The influence of temperature, pH value, the molar ratio of catechol to SDBS and catechol concentration on polymerization were studied. FT-IR, GPC, DSC and TGA were employed to characterize the synthesized poly(catechol). The results showed that the optimum reaction conditions were as follows: the temperatures was 40℃, pH value of the reaction was 5.5, the concentration of SDBS was 2.5 mmol/L and the molar ratio of catechol to SDBS was 2:1. The number average molecular weight of poly(catechol) was found as 810Da. Thermal analysis showed that the polymer glass transition temperature was 95 ℃.