Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives

Konrad Gziut; Agnieszka Kowalczyk

doi:10.14314/polimery.2020.4.2

Published : 2020-12-15

Vol. 65 No. 4 (2020)

Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives

Konrad Gziut Agnieszka Kowalczyk

DOI: https://doi.org/10.14314/polimery.2020.4.2

Abstract

Pressure-sensitive adhesives (PSAs) were prepared via UV-irradiaton of an acrylic syrups with reactive diluent (functional diacrylate) and photoinitiator. The acrylic syrups were received via free radical bulk polymerization process (FRBP) and influence of radical photoinitiator (α-hydroxyketones, acylphosphine oxides or mixtures thereof) was investigated. It was revealed that the mixture of bisacylphosphine oxide (Omnirad 819) and α-hydroxyketone (Omnirad 184) was the most effective in FRBP (the highest monomer conversion), but preferable features of acrylic syrups (viscosity and molecular weight of copolymers) and self-adhesive properties of PSAs (especially cohesion) was achieved due to α-hydroxyketones using.

Keywords

bulk photopolymerization ; acrylic syrup ; radical photoinitiators ; pressure-sensitive adhesives fotopolimeryzacja w masie ; akrylany ; fotoinicjatory rodnikowe ; kleje samoprzylepne

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Gziut, K., & Kowalczyk, A. (2020). Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives. Polimery, 65(4), 268-274. https://doi.org/10.14314/polimery.2020.4.2

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Konrad Gziut

Affiliation
West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Pulaskiego 10, 70-322 Szczecin, Poland

Agnieszka Kowalczyk agnieszka.kowalczyk@zut.edu.pl

Affiliation
West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering, Pulaskiego 10, 70-322 Szczecin, Poland