Nature employs a complement of hydrogen bonding and ionic bonding in the design of biomacromolecules used in biological systems. This inspiration demands that scientists envision adhesives and coatings that present novel performance due to this complicated morphological synergy. Moreover, nature employs sequence control in combination with unique molecular architectures. This lecture will focus on the design of block copolymers with a focus on ion-containing acrylics, polyurethanes, and ammonium or phosphonium ionenes for the synthesis of novel materials for coatings. These intermolecular interactions are dynamic and offer impact in the design of novel polymeric materials with self-healing characteristics and stimuli-responsive performance. Particular attention will be devoted to the synthesis of DABCO based doubly charged monomers and the impact of the dications on self-assembly and the formation of physical crosslinks compared to simpler ammonium and imidazolium cations. Physical characterization that the presence of the doubly charged repeating units leads to improved physical crosslinking and enhanced thermomechanical performance for many elastomeric and adhesive applications.

Doubly Charged Monomers for Enhanced Physical Crosslinking: Are two charges per repeating unit twice as good?

251st National Meeting (2016)

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