Local Mechanical Properties of Plasma Treated Polystyrene Surfaces

Autor:	B. Cappella, Elmar Bonaccurso, Karlheinz Graf
Rok vydání:	2006
Předmět:	chemistry.chemical_classification Materials science Analytical chemistry Plasma treatment Plasma Polymer Surfaces Coatings and Films body regions chemistry.chemical_compound chemistry Indentation Materials Chemistry Polystyrene Physical and Theoretical Chemistry Composite material
Zdroj:	The Journal of Physical Chemistry B. 110:17918-17924
ISSN:	1520-5207 1520-6106
Popis:	We study how a local air plasma treatment affects the mechanical properties of polystyrene by performing indentation measurements on the polymer in the elastic and plastic regime. The local exposure to plasma was obtained by placing a shadow-mask with quadratic holes of 45 x 45 microm(2) on top of the polymer substrate, providing uncovered (exposed to the plasma) and covered (protected from the plasma) areas. We have analyzed quantitatively the topography and the elastic-plastic properties of such a sample with atomic force microscopy (AFM) measurements, both before and after plasma treatment. To enhance the differences between covered and uncovered areas, the sample has been exposed to solvent vapor. This generates regions which are differently swollen. The quantitative investigation of the mechanical properties of the swollen sample for different solvent exposure times gives further insight into the changes of polystyrene mechanical properties caused by the plasma.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::351e33acedb12ac0ceac43a5227eaab9 https://doi.org/10.1021/jp062602w Zobrazit plný text záznamu