Details

Autor(en) / Beteiligte

• Hwang, Chiwon
• Back, Jong-Ho
• Ahn, Dowon
• Paik, Hyun-Jong
• Lee, Wonjoo
• Yu, Youngchang

Titel

A facile post-modification strategy for carboxylic acid-functionalized UV-responsive pressure-sensitive adhesives

Ist Teil von

• Polymer chemistry, 2022-01, Vol.13 (2), p.193-2

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• UV-responsive pressure-sensitive adhesives (PSAs) were achieved through the ring-opening reactions of N -carbonyl aziridine radicals. By exploiting the variable ring-opening rate (depending on the N -substituent in the aziridine ring) of a suitable monomer ( N -methacryloyl-2-methylaziridine), the post-modification of the carboxylic acid-functionalized acrylic PSAs was accomplished under mild conditions. The double-bond-added PSAs were characterized by spectroscopic analysis ( i.e. , 1 H NMR and FT-IR) and their adhesion performance was evaluated under UV light irradiation ( i.e. , 180° peel test and loop tack test), which confirmed their "switching-off" capabilities and real-time viscosity properties and ensured a relatively long pot life. We believe our approach will render the transformation of UV-responsive polymeric materials a feasible task, which will benefit both academic research and mass-production industry. UV-responsive pressure-sensitive adhesives (PSAs) were achieved through the ring-opening reactions of N -carbonyl aziridine radicals.