Daniel Read: Why do these associating polymers stick to polytetrafluoroethylene (PTFE) and other polymers?
Answer: We believe that the aminated polymers stick to other plastic substrates by an absorption adhesion mechanism. The samples wet the surface due to their softness and viscoelastic flow properties. The polar amine groups anchor into the plastic substrate via directed intermolecular interactions. While the substrates themselves can be inert and nonpolar, the high density of amines increases the overall adhesive strength.
Ole Hassager: What is the contact angle of your samples? Maybe investigating this point could help understanding why they are so sticky?
Answer: We agree, contact angle measurements are a useful tool to understand the interfacial interactions between our samples and the substrates. We have collected data on the contact angle of the P1 polymers to be published. A flat surface was prepared by swiftly removing a top sheet of PTFE from a solid...
