Supramolecular approach to new inkjet printing inks

Area of Science:

• Supramolecular Chemistry
• Polymer Science
• Materials Science

Background:

• Development of advanced inks for inkjet printing is crucial for additive manufacturing.
• Self-assembly of polymers offers a route to novel functional materials.
• Tunable electronic interactions are key for material property control.

Purpose of the Study:

• To develop low molecular weight polymers for self-assembly into supramolecular networks.
• To investigate inkjet printing applications of these self-assembling polymer systems.
• To explore the color-generating properties and tunability of the resulting materials.

Main Methods:

• Synthesis of electronically complementary low molecular weight polymers.
• Utilizing π-π stacking interactions for supramolecular network formation.
• Deposition via piezoelectric and thermal inkjet printing techniques.

Main Results:

• Successful deposition of self-assembling polymers using three printing techniques.
• Formation of supramolecular networks through π-electron rich and deficient end-group complexation.
• Generation of strongly colored materials via charge-transfer absorption, with color tunable by end-group modification.

Conclusions:

• Electronically complementary polymers can form self-assembled supramolecular networks suitable for inkjet printing.
• These materials offer a pigment-free route to strongly colored inks with tunable properties.
• The developed inks demonstrate utility and versatility for various industrial applications.