Synthesis and properties of UV-curable hyperbranched polymers for ink-jet printing of color micropatterns on glass

• Published in: Thin solid films Vol. 519; no. 15; pp. 5243 - 5248
• Main Authors: Chang, Chi-Jung, Lin, Yan-Hung, Tsai, Hsin-Yu
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 31.05.2011; Elsevier
• Subjects: Applied sciences; Chemical resistance; Color; Color filter; Condensed matter: structure, mechanical and thermal properties; Curing; Design. Technologies. Operation analysis. Testing; Drop size; Electronics; Exact sciences and technology; Glass; Hyperbranched polymer; Ink-jet; Inks; Integrated circuits; Liquid crystal displays; Mechanical and acoustical properties; Microelectronic fabrication (materials and surfaces technology); Oligomers; Physical properties of thin films, nonelectronic; Physics; Printing; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); UV-curable; Color filter; Hyperbranched polymer; Chemical resistance; UV-curable; Ink-jet; Nanohardness; Hardness test; Ink; Nanoindentation; Mechanical properties; Polymer; Surfactant; Hardness; Oligomer; Microelectronic fabrication; Polyurethane; Pigments; Curing; Hardness indentation; Ink jet printing; Trajectory
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2011.01.168

Hyperbranched polyurethane-methacrylates were synthesized and used as oligomers for ink-jet printing of LCD color filters. Pigment-based inks containing these hyperbranched polymers (HBPs) were ink-jet printed and fixed by a UV curing reaction to make color patterns on glass substrates. The HBPs exhibited excellent compatibility with pigments and other UV-curable compositions in inks. Surfactants were added and hyperbranched polymers were changed to adjust the rheology of the inks; this adjustment improved the ink for ink-jet printing, with regard to performance such as straight jetting trajectory, deposition accuracy, and uniform drop size. The UV-cured patterns that incorporated HBPs as ink components exhibited good chemical resistance and high nanoindentation hardness.