For more techncial articles focusing on PSA’s, I can recommend the article published in: Adhesion Science and Engineering, Vol I: The Mechanics of Adhesion, D.A. Dillard and A.V. Pocius eds. Elsevier. pp. 535-576.
the rest of this two volumes series is excellent and is worth buying for a complete and modern vision of the science of adhesion.
Preprint of the article on Tack written by C. Creton and P. Fabre.