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Inkjet-printed monolayers as platforms for tethered polymers.

Amit Y Sankhe1, Brandon D Booth, Nathan J Wiker

  • 1Department of Chemical and Biomolecular Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, South Carolina 29634, USA.

Langmuir : the ACS Journal of Surfaces and Colloids
|June 1, 2005
PubMed
Summary

Inkjet printing combined with atom-transfer radical polymerization (ATRP) creates versatile patterned polymer surfaces. This method amplifies chemical gradients and patterns with high fidelity for diverse applications.

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Area of Science:

  • Polymer Chemistry
  • Surface Science
  • Materials Science

Background:

  • Patterned polymer surfaces are crucial for various applications.
  • Inkjet printing and atom-transfer radical polymerization (ATRP) are established techniques.

Purpose of the Study:

  • To develop a versatile method for producing patterned polymer surfaces.
  • To combine inkjet printing with surface-confined ATRP to amplify patterns and gradients.

Main Methods:

  • Utilizing drop-on-demand inkjet printing to create binary chemical gradients and patterns on substrates.
  • Employing surface-confined ATRP to grow tethered polymer layers from printed initiator patterns.
  • Characterizing surface properties using water contact angle measurements, FTIR spectroscopy, atomic force microscopy, and optical microscopy.

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Main Results:

  • Inkjet printing successfully created chemically graded monolayers with continuous changes in water contact angle.
  • Surface-confined ATRP amplified the printed initiator patterns and gradients with poly(methyl methacrylate) (PMMA).
  • Atomic force microscopy and optical microscopy confirmed high fidelity amplification of underlying patterns.

Conclusions:

  • The combined inkjet printing and ATRP approach offers a versatile and straightforward method for creating amplified patterned polymer surfaces.
  • This technique provides a robust platform for applications requiring precise control over surface chemistry and topography.
  • The fidelity of pattern amplification suggests potential for advanced material fabrication and surface engineering.