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.
Titolo: | Progresses in the enzymatic surface modification of PET. |
Autore/i: | I. Donelli; TADDEI, PAOLA; V. A. Nierstrasz; G. Freddi |
Autore/i Unibo: | |
Anno: | 2009 |
Titolo del libro: | Proceedings of the 6th International Conference on Textile and Plymer Biotechnology. |
Pagina iniziale: | 223 |
Pagina finale: | 228 |
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. |
Data prodotto definitivo in UGOV: | 2-feb-2010 |
Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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