UMass Amherst

David A. Hoagland

Associate Professor, Dept. of Polymer Science and Engineering
A513 Conte, University of Massachusetts
Amherst, MA 01003-9292
(413) 577-1513
dah@neurotica.pse.umass.edu
http://www.pse.umass.edu/~dhoagland/

Polymer Solutions and Gels

Efforts focus on polymer solutions and gels, especially on the unique dynamics and interactions these structurally rich materials offer. Interest may center on low molecular weight solutes (ions, drugs, etc.), polymeric solutes (synthetic polymers, DNA, etc.) or molecules of the medium itself (solvent, network chains, etc.). Often, there is a coupling of time or length scales that creates interesting physical processes, as for example, when a flexible polymer diffuses through a small pore (coupling of length scales) or unravels in a turbulent flow (coupling of time scales). Many projects probe the electrostatically dominated behaviors of highly charged polymers (polyelectrolytes). Technologies such as polymer separations, sensors, and rheology immediately benefit from the group’s research results.

Research Interest Potential Application
Research in polyelectrolytes Polymer separations, sensors, rheology

Honors and Awards

  • Sigma Chi Distinguished National Lecturer, 2004-2005
  • Fellow, American Physical Society, 2003
  • The OMNOVA Solutions Foundation Signature University Award for Outstanding Research, 2000
  • IBM Faculty Development Award, 1986

Publications

  1. "Monte Carlo Simulations of Probe-Host Chain Entanglement: Influence of Host Mobility and Size on Probe Electrophoretic Motion" (with M. E. Starkweather and M. Muthukumar), Macromolecules 32, 6837 (1999).
  2. "Capillary Electrophoresis Measurements of the Free Solution Mobility for Several Model Polyelectrolyte Systems" (with E. Arvanitidou and C. F. Welch), Macromolecules 32, 6180 (1999). "Fractionation of Polycations with Capillary Electrophoresis" (with C. F. Welch), Poly. Prepr. 39, 771 (1998).
  3. "Single Chain Entanglement: A Monte Carlo Simulation of Dilute Solution Capillary Electrophoresis" (with M. E. Starkweather and M. Muthukumar), Macromolecules 31, 5495 (1998).
  4. "Chain Stiffness of a High Molecular Weight Polyguanidine Prepared by Living Polymerization" (with M.-P. Nieh, A. A. Goodwin, J. R. Stewart, and B. M. Novak), Macromolecules 31, 3151 (1998).