Dendrimer and polystyrene surfactant structure at the air-water interface Academic Article uri icon

abstract

  • The Π-A isotherms at the air-water interface and 25°C for monomolecular films of the recently synthesized dendrimer surfactants are reported and compared with those of polystyrene terminated with a single hydroxyl group. There is a strong dependence of the isotherms on molecular weight (MW) for both systems, the lower MWs typified by an increase in the surface pressure through a liquid expanded phase, followed by a peaked collapse transition, indicating a nucleation and growth process, to a liquid condensed, phase. The higher molecular weight dendrimer and polystyrene isotherms are also similar, with a steep increase in the surface pressure being due to a direct transition to a solid phase. © 1993 American Chemical Society.

altmetric score

  • 3

author list (cited authors)

  • Saville, P. M., White, J. W., Hawker, C. J., Wooley, K. L., & Frechet, J.

citation count

  • 53

publication date

  • January 1993