Combined Effect of Chain Extension and Supramolecular Interactions on Rheological and Adhesive Properties of Acrylic Pressure-Sensitive Adhesives

摘要: A new approach for the elaboration of low molecular weight pressure-sensitive adhesives based on supramolecular chemistry is explored. The synthesis model systems coupled with probe-tack tests and rheological experiments highlights influence transient network formed by bonds adhesion energy. first step our consists synthesizing poly(butyl acrylate-co-glycidyl methacrylate) copolymers from a difunctional initiator able to self-associate four hydrogen between urea groups. Linear dispersity (Mn = 10 kg/mol, Ip < 1.4) have been synthesized via atom transfer radical polymerization. Films were then partially cross-linked through reaction epoxy functions diamine. systematic variation average ratio glycidyl methacrylate diamine per copolymer shed light respective role played interactions (between bis-urea groups side chains) ch...