The Colloid-Polymer Critical Point sample is a combination of monodisperse PMMA particles and polystyrene polymer, suspended in cis-decalin and tetralin. This sample was homogenized on July 17, 2001. Immediately after mixing, it began to phase separate, or demix, into two phases--one that resembles a gas and one that resembles a liquid--except that the particles are colloids, not atoms. In this image, the black regions (colloidal gas) are bigger and the white regions (colloidal liquid) have become whiter as the domains have coarsened.

Back to article

Last updated: June 2002

Responsible NASA Official: Gynelle.C.Steele@nasa.gov
216-433-8258

Point of contact for NASA Glenn's Research & Technology reports: Cynthia.L.Dreibelbis@nasa.gov
216-433-2912
SGT, Inc.

Web page curator: Nancy.L.Obryan@nasa.gov
216-433-5793
Wyle Information Systems, LLC

NASA Web Privacy Policy and Important Notices

Last updated: July 31, 2002

Last updated: June 2002

Responsible NASA Official: Gynelle.C.Steele@nasa.gov
216-433-8258

Point of contact for NASA Glenn's Research & Technology reports: Cynthia.L.Dreibelbis@nasa.gov
216-433-2912
SGT, Inc.

Web page curator: Nancy.L.Obryan@nasa.gov
216-433-5793
Wyle Information Systems, LLC

NASA Web Privacy Policy and Important Notices