Premium
Studies of the thicknesses of adsorbed glass finishes by ellipsometry
Author(s) -
Tutas D. J.,
Stromberg R.,
Passagila E.
Publication year - 1964
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760040405
Subject(s) - adsorption , silane , ellipsometry , materials science , ketone , polymer , layer (electronics) , chemical engineering , polymer chemistry , composite material , chemistry , organic chemistry , thin film , nanotechnology , engineering
The thickness of the adsorbed layer of two glass finishes, vinyl tris (2‐methoxyethoxy) silane and gamma‐aminopropyltriethoxysilane, was measured by ellipsometry. The vinyl silane was adsorbed on glass from solutions in water and in methyl ethyl ketone. The adsorption from water resulted in a film initially at least 50 Å thick, which increased in thickness with time. Adsorption from methyl ethyl ketone solution resulted in a film of about 10 Å. The amino silane was adsorbed on glass and on chrome from soutions in water. Adsorption on glass resulted in a film at least 60 Å in thickness, which remained constant over a period of about 5 hours. Adsorption on chrome resulted in a film about 10 Å in thickness. From the results it appears that a polymer, rather that small molecules of glass finish, is adsorbed from the water solution on glass and that small unpolymerized “finish” molecules are adsorbed from the methyl ethyl ketone solution.