Dynamic changes to pore structure and mass migration under pressure occur in daily life for porous polymeric materials. When compared to static porous polymer materials, pore shape and size are transformed under pressure, where migrating masses interact and react with physical and chemical reactions. Their complex microstructures mean traditional methods and modeling technology used in static polymer materials cannot be effectively applied to dynamic pore structure. Therefore, new numerical, physical, and chemical modeling methods are required to investigate and characterize dynamic pore structure and mass migration in porous polymer materials.

This special issue aims to present recent advances in various areas addressing new physical and chemical technologies in dynamic porous materials. We welcome original research articles as well as review articles that focus on the modeling and characterization for the dynamic pore structure and mass migration in polymer materials. We anticipate that this special issue will provide timely aspects of the dynamic structure and mass migration of porous polymeric materials at the nano/microscale.

Potential topics include but are not limited to the following:

• Nano- and microscale modeling in dynamic porous polymer materials
• Novel numerical and modelling methods for dynamic structure
• Mass migration in porous polymer materials
• Physical and chemical effects on dynamic structure
• New characterizing technologies applied to dynamic polymer materials
• Multiphase flow processes in porous polymeric materials
• Multiscale machine learning technologies in complex polymeric materials