Using spinning drop tensiometry to determine the square gradient parameter for dodecyl acrylate/poly (dodecyl acrylate) for use in the tipmps flight investigation
Two techniques were used to estimate the square gradient parameter for a dodecyl acrylate, poly (dodecyl acrylate) system. Using spinning drop tensiometry an effective interfacial tension (EIT) of 0.08 +/- 0.01 mN/m was measured at 27 +/- 1 °C. The corresponding transition zone width was determined to be 0.10 mm, yielding a square gradient parameter of 5-8 × 10-9 N. A numerical approach using various thermodynamic theories coupled with concepts from light scattering yielded a molecular weight dependent square gradient parameter. The resulting values were shown to fall within the range of 10-11-10-9 N for MW's of 104-106. © 2003 by John A. Pojman. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.
Publication Source (Journal or Book title)
41st Aerospace Sciences Meeting and Exhibit
Zoltowski, B., & Pojman, J. (2003). Using spinning drop tensiometry to determine the square gradient parameter for dodecyl acrylate/poly (dodecyl acrylate) for use in the tipmps flight investigation. 41st Aerospace Sciences Meeting and Exhibit Retrieved from https://digitalcommons.lsu.edu/chemistry_pubs/1199