Synthesis–Processing–Structure–Property Interrelationship of Multifunctional Polymeric Materials and Natural Polymers Special Issue 2025-05-09 0 Special Issues New (Co)poly(hydroxyimide)s Based on 4,4′-Oxydiphthalic Anhydride—Effect of Composition on Properties, Including Gas Transport Ability edited by Agnieszka Katarzyna Pająk, Andrzej Jankowski and Ewa Schab-Balcerzak