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Studies of amine treatments influence on poly(ethyleneterepthalate) films

M. AFLORI1,* , M. DROBOTA1, D. ŢIMPU1, V. BARBOIU1

Affiliation

  1. Romanian Academy, Petru Poni Institute of Macromolecular Chemistry, Aleea Ghica Voda 41A, 700487 Iasi, Romania

Abstract

By applying ammonia plasma treatment and chemical ethylenediamine treatment, amine functionalities were observed in the poly(ethylene terephthalate) (PET) films surfaces. The modified surfaces were characterized by FTIR, fluorescence, wide-angle X-ray diffraction (WAXD) and atomic force microscopy (AFM). Ethylenediamine treatment yielded fewer surface amino groups, and in addition a change in crystallinity as well as degradation of PET. Treatment time dependency of amine concentration is depicted, more amines were incorporated after exposure to a higher energetic plasma resulted by the higher ionisation in the plasma. At higher energies at longer treatment, an increase of the amine concentration was observed. For surface activation, plasma treatment was more efficient than chemical treatment.

Keywords

Poly(ethylene terephthalate), Amine, Functionalization, FTIR, X-ray diffraction, Atomic force microscopy.

Citation

M. AFLORI, M. DROBOTA, D. ŢIMPU, V. BARBOIU, Studies of amine treatments influence on poly(ethyleneterepthalate) films, Optoelectronics and Advanced Materials - Rapid Communications, 2, 5, May 2008, pp.291-295 (2008).

Submitted at: April 3, 2008

Accepted at: May 8, 2008