Nano-/microfibrillar polymer-polymer and single polymer composites: The converting instead of adding concept

This method for converting of any bulk polymer into nano-sized material was recently made environmental-friendly by using water only as a solvent. Its further development was the control of the final nanomorphology: (i) if H-bonding between the blend partners is missing, the observed morphology is of individual not interconnected nanofibrils and (ii) in case H-bonds are present the nanomorphology represents a nanofibrillar nanoporous 3-D network. In this way the method allows the manufacturing of nanofibrillar PPCs and SPCs avoiding the dispersion problem (for PPCs) as well as the problem of interface adhesion quality (for SPCs).