(181bp) Extensional Flow of Associating Polymers: From Processing to Performance

Associating polymers are a wide class of materials which incorporate strong physical bonds to form a dynamic network between polymer backbone chains. Both the strength of the interaction and polymer backbone chemistry have significant effects on the properties of associating polymers. In this work we connect the material parameters to processing, performance, and unique characteristics of associating polymers having a variety of polymer architectures. We demonstrate the balance between processing and performance in these polymers, highlighting the linear mechanics and viscoelasticity as well as the non-linear extensional rheology and mechanics. Furthermore, we measure the self-healing behavior of various associating polymers in extension to highlight the importance of experimental design and material parameters. Using the results presented here, we hope to inform the engineering of associating polymers with superior characteristics and self-healing abilities.