Surface modification of PDMS for μ-transfer printing by derivation of azobenzene switching units

  • Viktoria Brandt

Student thesis: Master of Science by Research

Abstract

Photoswitchable stamp surfaces would allow a highly flexible and quick variation of the patterns formed by microcontact transfer printing. An attempt to synthesize the azobenzene 1-(4-hydroxy-3-(phenyldiazenyl)phenyl)-1H-pyrrole-2,5-dione proved unsuccessful. Discrepancies found in the paper this work was based on lead to an invitation by the editor of Molecules to publish a comment on the paper. As an alternative approach, the surface modification using an azobenzene containing dendron was investigated. A synthesized denron including a maleimide moiety gave broad 1 H-NMR-signals. A further dendron with an alcohol moiety at the focal point was successfully synthesized and characterized. PDMS functionalization was achieved with this dendron, however by adsorption into the elastomer.
Date of Award1 Aug 2020
Original languageEnglish
Awarding Institution
  • The University of Manchester
SupervisorPeter Quayle (Supervisor) & Stephen Yeates (Supervisor)

Keywords

  • PDMS
  • Organic Synthesis
  • Azobenzene
  • Photoswitch

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