Future Directions in Polymer Colloids
Mohamed S. El-Aasser, Robert M. Fitch
Springer Netherlands, Nov 30, 1987 - Science - 402 pages
Future Directions In Polymer Colloids Hohamed S. EI-Aasser, and Robert H. Fitch (editors) It is appropriate that the first NATO-Advanced Research Workshop on "FUTURE DIRECTIONS IN POLYMER COLLOIDS" was held approximately fifty years after the first synthetic polymer latexes were made on a commercial scale during the mid-1930s. Since that time the field of what is now known as polymer colloids has been evolving rapidly, not only on the practical level, but also on the scientific and engineering levels. Billions of pounds of copolymers are manufactured annually by means of the emulsion polymerization process. "Commodity" polymers as well "specialty" polymers are prepared today for use in a wide variety of applications: synthetic rubber, floor coatings, paints, adhesives, binders for non-woven fabrics, high-impact polymers latex foam, additives for construction materials such as cement and concrete, and rheological modifiers. They are also used in numerous biomedical applications: such as diagnostic tests, immunoassays, biological cell-labeling, (identi fication and separation), and drug delivery systems. Small quantities of monodisperse polymer colloids are used as size calibration standards and find extensive use as model colloids to test theories in colloids surface and rheological studies. Advances have been made in our understanding of the mechanism and kinetics of the emulsion polymerization process as well as the stability of polymer colloids. Equal advances were made in engineering areas related to polymer colloids, e. g. modeling of batch, semi-continuous and continuous emulsion polymerization and copolymer ization processes.
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Polymer Colloids as Model Systems for Studying Rheology
Theoretical Approaches to the Rheology of Concentrated
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addition adsorbed adsorption amount antibody antigen applications approach aqueous beads binding bone marrow cells changes charge Chem chemical chromatography colloidal complex composition concentration containing continuous copolymer copolymerization coupling curve density dependent described determined developed diameter direction dispersion distribution drug effect energy equation et al experimental experiments field Figure flocculation flow forces function give given grafting groups important increased initiator interaction latex particles latex polymer layer magnetic material measurements mechanism medium methods microspheres mixture molecular weight molecules monomer droplets morphology observed obtained occur parameters phase polymer colloids polymer particles polymerization polystyrene potential prepared present properties protein range ratio reaction recently removal scattering seed separation shear showed shown solution solvent spheres stabilizer steric stress structure studies surface suspensions techniques temperature theory transfer values various volume fraction