Easy removable and UV tunable biobased waterborne pressure sensitive adhesives

Herein, high performance and biobased waterborne pressure sensitive adhesives having the ability to be removed in water at short times and being tunable upon UV-light have been developed. The combination of two functional monomers, namely, an isosorbide derivative monomer and piperonyl methacrylate in PSA formulations containing 2-octyl acrylate (2OA) as main monomer provided strong and extensible adhesive films. Besides, the adhesive films can be post-treated by UV-irradiation enhancing cohesion of the adhesives, via crosslinking reactions between benzodixole groups, hence fine tuning their performance. The presence of low amounts of the sugar-based derivative monomer (1 wt%) promoted the removability in water of the PSA tapes, which was kept after the UV-light curing.