Surface-influenced phase separation in organic thin films on drying

Ravi F. Saraf, Steve Ostrander, R. M. Feenstra

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Kinetics of phase separation at the air/polymer interface in a binary polymer mixture on evaporation of common solvent is studied. The lateral dimension of the highly anisotropic, pancake-like, minority phase increases with a growth exponent of 2/3, identical to "late-stage" growth under (classical) thermal quench at interface. The "wetting-layer" formed at the surface is directly visualized using atomic force microscopy. In contrast to the thermal quench, during drying the kinetics depends on the initial condition (i.e., initial concentration, c0) that is resealed to obtain a master curve.

Original languageEnglish (US)
Pages (from-to)483-489
Number of pages7
JournalLangmuir
Volume14
Issue number2
StatePublished - Jan 20 1998

Fingerprint

Phase separation
drying
Drying
Polymers
Thin films
Kinetics
kinetics
polymers
minorities
thin films
wetting
Wetting
Atomic force microscopy
Evaporation
evaporation
atomic force microscopy
exponents
air
curves
Air

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Saraf, R. F., Ostrander, S., & Feenstra, R. M. (1998). Surface-influenced phase separation in organic thin films on drying. Langmuir, 14(2), 483-489.

Surface-influenced phase separation in organic thin films on drying. / Saraf, Ravi F.; Ostrander, Steve; Feenstra, R. M.

In: Langmuir, Vol. 14, No. 2, 20.01.1998, p. 483-489.

Research output: Contribution to journalArticle

Saraf, RF, Ostrander, S & Feenstra, RM 1998, 'Surface-influenced phase separation in organic thin films on drying', Langmuir, vol. 14, no. 2, pp. 483-489.
Saraf RF, Ostrander S, Feenstra RM. Surface-influenced phase separation in organic thin films on drying. Langmuir. 1998 Jan 20;14(2):483-489.
Saraf, Ravi F. ; Ostrander, Steve ; Feenstra, R. M. / Surface-influenced phase separation in organic thin films on drying. In: Langmuir. 1998 ; Vol. 14, No. 2. pp. 483-489.
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