Published : 2022-09-01

Application of novel unsaturated organosilane ethers in cationic UV-crosslinkable acrylic PSA systems

Abstract

This paper describes application possibilities of applying novel unsaturated - allyl and 1-propenyl butane-1,4-diol derivatives containing a trimethylsilane group [TMSAlE and DMSAlE, respectively, Formulas (I) and (III)] or a dimethylsilane group (TMSPnE and DMSPnE, respectively, Formulas (II) and (IV)] as cationic-crosslinking, reactive in result of UV radiation activity monomers in polyacrylate systems containing oxirane groups. Terpolymerization of 2-ethylhexyl acrylate with acrylic acid and glycidyl acrylate or metacrylate (GA and GMA, respectively) led to formation of pressure-sensitive adhesives (PSAs). Compositions containing such polyacrylates, unsaturated organosilane ethers (OE) and a Irgacure 261 as a were crosslinked at ambient temperature using a UV lamp. Adhesion to glass and cohesion of unmodified self-adhesives, as well as effect of OE on those properties were investigated.The best cohesion and adhesion levels for PSAs were achieved at approx. 3 wt. % of propenyl ethers (TMSPnE and DMSPnE). Those ethers also exhibited better crosslinking properties than TMSAIE and DMSAlE.


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Czech, Z., & Urbala, M. (2022). Application of novel unsaturated organosilane ethers in cationic UV-crosslinkable acrylic PSA systems. Polimery, 49(11-12), 837–840. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1820