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Evaluation of the Surface Tension of Poly(vinyl butyral) Using the Pendant Drop Method
Author(s) -
Morais Douglas,
Valera Ticiane Sanches,
Demarquette Nicole Raymonde
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200651329
Subject(s) - surface tension , drop (telecommunication) , polymer , materials science , spinning drop method , polymer chemistry , composite material , sessile drop technique , maximum bubble pressure method , tension (geology) , thermodynamics , physics , ultimate tensile strength , telecommunications , computer science
In this work the surface tension of poly(vinyl butyral) was evaluated for temperatures ranging from 240 to 260 °C, using the pendant drop method. The surface tension values obtained were in the same range as the ones obtained for other molten polymers; However the variation of surface tension with temperature was more than ten times larger than for other molten polymers. This difference was attributed to a chemical change of the polymer during the surface tension measurement.