Currently, porous polymers with high specific surface area are receiving rapidly expanding interest, which can be attributed to their importance in broad applications, such as catalysis, absorption, ion-exchange, separation, and many more. Compared with nanopores in neutral or weakly charged polymers, preparation of nanoporous polyelectrolyte materials are far more underdeveloped. A popular yet indirect approach is to chemically modify pre-synthesized nonionic porous polymers. Another approach is the layer by layer (LbL) assembly, which has been demonstrated to be capable of creating small pores. However, the LbL approach is time consuming, and difficult to scale up.Poly(ionic liquid)s (PILs), a subset of polyelectrolytes synthesized via polymerization of monomeric ionic liquids (ILs), recently emerge as a new research focus in the polymer and materials communities. In this talk, I will introduce a facile preparation of nanoporous polyelectrolyte materials stemming from the electrostatic complexation of imidazolium-based PILs with carboxylic acid-based polyacid.[1,2] Powders and membranes built up from PIL-based polyelectrolytes will be presented. Their applications in sorption, catalysis and sensor applications will be discussed in detail.Figure 1. (a) Photograph of a PIL complex membrane. (b) SEM image of the cross-section view. (c) Enlarged view of zone II in b.References[1] Zhao, Q.; Yin, M.; Zhang, A. P.; Prescher, S.; Antonietti, M.; Yuan, J.,* J. Am. Chem. Soc., 2013, 135, 5549�5552.[2] Zhao, Q.; Soll, S.; Antonietti, M.; Yuan, J.,* Polym. Chem., 2013, 4, 2432-2435.

Nanoporous poly(ionic liquid) networks: Be ready to get charged

248th National Meeting (2014)

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