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. Donelli, P. Taddei, V.A. Nierstrasz, G. Freddi (2009). Progresses in the enzymatic surface modification of PET.. GHENT : Ghent University. Department of Textiles.
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.
