We have designed and synthesized a new series of 4',4-methylene diphenyl diisocyanate (DBDI) based supramolecular polymers. These polymers exhibit highly-ordered phase separated morphologies in the solid state. The morphology is thermally responsive, losing definition as the temperature is increased, but spontaneously re-forming as the temperature decreases. The supramolecular PUs also exhibited a highly defined visco-elastic transition revealing that these polymers can be switched rapidly from tough materials to non-viscous fluids by minimal increases in temperature.

Molecular scale design for highly thermo-sensitive supramolecular polymers

242nd National Meeting (2011)

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