High-pressure electroosmotic pumps based on porous polymer monoliths

Jennifer A. Tripp, Frantisek Svec*, Jean M.J. Fréchet, Shulin Zeng, James C. Mikkelsen, Juan G. Santiago

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Electroosmotic pumps have been prepared using macroporous polymer monoliths with their pore surface grafted with the ionizable monomers 2-acrylamido-2-methyl-1-propanesulfonic acid and [2-(methacryloyloxy)ethyl] trimethyl ammonium chloride, respectively. The effects of critical parameters such as pore size of the monolith, percentage of ionizable moieties in the grafted layer, crosslinking density, and driving voltage on both flow rate and pressure have been quantified. Electroosmotic pumps fabricated from the grafted monoliths afforded pressures as high as 0.38MPa and electric-field-specific flow rates of up to 0.41ml/min, both at an applied potential of 50V.

Original languageEnglish (US)
Pages (from-to)66-73
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume99
Issue number1
DOIs
StatePublished - Apr 15 2004
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by grant from DARPA (F30602-00-1-0571), with Michael Krihak as program director. Additional support from the National Institute of General Medical Sciences, National Institutes of Health (GM-48364) and the Office of Nonproliferation Research and Engineering of the US Department of Energy under contract no. DE-AC03-76SF00098 is also gratefully acknowledged.

Keywords

  • Electroosmotic pumps
  • Monolith
  • Polymer
  • Porous

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Metals and Alloys
  • Instrumentation
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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