The effect of a thermostable cutinase on the surface properties of PET films was investigated. PET films were incubated with cutinase at different temperatures (45-85°C) and then characterized by FTIR-ATR. Upon cutinase treatment the surface of PET attained a higher crystalline character, as denoted by the trend of the A1341/A1410, A1370/A1410, and I1120/I1100 spectroscopic indexes, the effect being stronger at above Tg (72°C). The use of FITC-labeled cutinase showed that a remarkable amount of enzyme remained attached onto the PET surface when the treatment temperature exceeded the Tg value.
Progresses in the enzymatic surface modification of PET / I. Donelli; P. Taddei; V.A. Nierstrasz; G. Freddi. - STAMPA. - (2009), pp. 223-228. (Intervento presentato al convegno 6th International Conference on Textile and Polymer Biotechnology. Future developments and trends. New technologies. New applications - New developments. tenutosi a Ghent (Belgium) nel September 23-25, 2009).
Progresses in the enzymatic surface modification of PET.
TADDEI, PAOLA;
2009
Abstract
The effect of a thermostable cutinase on the surface properties of PET films was investigated. PET films were incubated with cutinase at different temperatures (45-85°C) and then characterized by FTIR-ATR. Upon cutinase treatment the surface of PET attained a higher crystalline character, as denoted by the trend of the A1341/A1410, A1370/A1410, and I1120/I1100 spectroscopic indexes, the effect being stronger at above Tg (72°C). The use of FITC-labeled cutinase showed that a remarkable amount of enzyme remained attached onto the PET surface when the treatment temperature exceeded the Tg value.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
