A Direct Comparison of SANS and DET for Polymer Diffusion During Polystyrene Latex Film Formation

Published

March 1, 2000

Author(s)

S D. Kim, E M. Boczar, Barry J. Bauer, A Klein, L H. Sperling

Abstract

Polystyrene latex film is a model system for the study of interdiffusion in polymers. Small-angle neutron scattering (SANS) and a direct nonradiative energy transfer technique (DET) are widely used to study the interdiffusion of polymers in latex film. SANS and DET analysis were performed on exactly the same samples to remove any artifacts originating from sample differences. SANS and DET data provide various insights into the latex film formation process and mechanical strength development, especially in the very early time region. The interface shape in the sintered film was found to be sharp. The physical relaxation of deformed particles in sintered films was monitored by SANS while molecular interdiffusion was measured by DET without interference of physical relaxation. The diffusion coefficients obtained from SANS were slightly higher in most cases, within a factor of two than that determined by DET.

Proceedings Title

American Chemical Society; Division of Polymer Chemistry, Meeting | | | American Chemical Society (ACS)

Volume

41

Issue

No. 1

Conference Dates

March 1, 2000

Conference Location

Undefined

Conference Title

Polymer Preprints

Pub Type

Conferences

Download Paper

Local Download

Keywords

DET, diffusion, latexes, polystyrene, SANS

Citation

Kim, S. , Boczar, E. , Bauer, B. , Klein, A. and Sperling, L. (2000), A Direct Comparison of SANS and DET for Polymer Diffusion During Polystyrene Latex Film Formation, American Chemical Society; Division of Polymer Chemistry, Meeting | | | American Chemical Society (ACS), Undefined, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851660 (Accessed October 11, 2025)