title: Effects of oxygen and carbon dioxide plasmas on the surface of poly(ethylene terephthalate).
abstract: Poly(ethylene terephthalate) was exposed to oxygen and carbon dioxide plasmas for different periods of time. The surface-modified samples were characterized by infrared spectroscopy, atomic force microscopy, and inverse gas-solid chromatography. The main difference between both types of plasma was connected to the time scale of degradation, which was much faster when using oxygen plasma. Aggregate globular features were produced by different treatments due to chain scission and further recombination of evolved products. Oxygenated functionalities were introduced in significant amounts after long exposure times to the oxygen plasma. As a consequence, the specific component of the surface free energy was clearly observed to increase after these long treatments.
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias, 18071 Granada, Spain.
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Almazán-Almazán
authors.forename: J I
authors.initials: JI
authors.lastname: Paredes
authors.forename: M
authors.initials: M
authors.lastname: Pérez-Mendoza
authors.forename: M
authors.initials: M
authors.lastname: Domingo-García
authors.forename: F J
authors.initials: FJ
authors.lastname: López-Garzón
authors.forename: A
authors.initials: A
authors.lastname: Martínez-Alonso
authors.forename: J M D
authors.initials: JM
authors.lastname: Tascón
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D006358:Hot Temperature; D018625:Microscopy, Atomic Force; D010100:Oxygen / Q000737:chemistry*; D011093:Polyethylene Terephthalates / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*; D013816:Thermodynamics; D013997:Time Factors
chemical_list: D011093:Polyethylene Terephthalates; D013501:Surface-Active Agents; D002245:Carbon Dioxide; D010100:Oxygen