A: Seed Funding Project 3

Tailor-made Reverse Pluronics

  • Project leader(s)
 Dr. Johanna Bruckner
Dr. Johanna Bruckner
University of Stuttgart
PD Dr.  Stefan Naumann
PD Dr. Stefan Naumann
University of Stuttgart
  • Summary

Amphiphilic “Pluronic-type” block-copolyethers play a key role in projects A4 (mesoporous silica) and A6 (mesoporous carbon) of CRC 1333. For templating, both projects rely on the structure-directing properties of either their micellar or liquid crystalline solutions. These structures, however, are quite sensitive, e.g. to the addition of reactants such as silica or carbon precursors. Thus, the aim of this study is to improve micellar stability by the preparation of block-copolyethers with isotactic-enriched PPO-moieties (e.g., it-PPO-b-PEO-bit-PPO). Improved PPO-packing, which strengthens hydrophobic interactions, is envisioned to enhance control and reproducibility of the templating process. For a systematic investigation, block-copolyethers are synthesized with gradually increasing tacticity, from fully atactic to fully isotactic materials. The tacticity is to be correlated with micelle stability, shape and size. In further steps the lyotropic liquid crystalline phase behaviour and the impact on the templated materials will be examined.