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Supramolecular approach to new inkjet printing inks

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journal contribution
posted on 2023-06-09, 12:45 authored by Lewis R Hart, Josephine L Harries, Barnaby GreenlandBarnaby Greenland, Howard M Colquhoun, Wayne Hayes
Electronically complementary, low molecular weight polymers that self-assemble through tunable p-p stacking interactions to form extended supramolecular polymer networks have been developed for inkjet printing applications and successfully deposited using three different printing techniques. Sequential overprinting of the complementary components results in supramolecular network formation through complexation of p-electron rich pyrenyl or perylenyl chain-ends in one component with p-electron deficient naphthalene diimide residues in a chain-folding polyimide. The complementary p-p stacked polymer blends generate strongly colored materials as a result of charge-transfer absorption bands in the visible spectrum, potentially negating the need for pigments or dyes in the ink formulation. Indeed, the final color of the deposited material can be tailored by varying the end-groups of the p-electron rich polymer component. Piezoelectric printing techniques were employed in a proof of concept study to allow characterization of the materials deposited, and a thermal inkjet printer adapted with imaging software enabled in situ analysis of the ink drops as they formed and of their physical properties. Finally, continuous inkjet printing allowed greater volumes of material to be deposited, on a variety of different substrate surfaces, and demonstrated the utility and versatility of this novel type of ink for industrial applications.

History

Publication status

  • Published

File Version

  • Published version

Journal

ACS Applied Materials and Interfaces

ISSN

1944-8244

Publisher

American Chemical Society

Issue

16

Volume

7

Page range

8906-8914

Department affiliated with

  • Chemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-04-05

First Open Access (FOA) Date

2018-04-05

First Compliant Deposit (FCD) Date

2018-04-05

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