The first products made in space - Monodisperse latex particlesMonodisperse latex particles developed by seeded emulsion polymerization on various Space Shuttle flights are analyzed. The flight hardware was composed of a monodisperse latex reactor and a support electronics package, and the particles were examined by optical microscopy and TEM. Data on the particle size distributions, larger and smaller off-size particles, and conversion-time curves for the particles are examined and compared to ground-based results. It is observed that the ground-based polymerizations have more coagulum than the flight polymerizations; the flight latex particles have narrower size distributions than the ground particles; and the number of off-size larger particles in the flight particles is smaller than in the ground data.
Document ID
19870035329
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vanderhoff, J. W. (Lehigh Univ. Bethlehem, PA, United States)
El-Aasser, m. S. (Lehigh Univ. Bethlehem, PA, United States)
Micale, F. J. (Lehigh Univ. Bethlehem, PA, United States)
Sudol, E. D. (Lehigh Univ. Bethlehem, PA, United States)
Tseng, C.-M. (Lehigh Univ. Bethlehem, PA, United States)
Sheu, H.-R. (Lehigh University Bethlehem, PA, United States)
Kornfeld, D. M. (NASA Marshall Space Flight Center Huntsville, AL, United States)