Compositions are provided that can include: a polymer matrix and a plurality of ion-exchange particles distributed within the matrix. Solid polymeric compositions are provided that can include: a plurality of polymer chains from at least one polymer type defining a polymer matrix and a plurality of polymeric particles distributed within the polymer matrix. Articles of manufacture including a polymeric matrix having a plurality of ion-exchange particles distributed within the matrix are also provided.Products by process are provided that can include: providing polymer precursors in a substantially unsolidified state prior to solidifying the precursors, blending the precursors with ion-exchange particles to form a mixture and solidifying the mixture to form solid polymeric composition product. Solid polymeric composition production methods are also provided that can include: providing a plurality of ion-exchange particles providing polymer precursors in a substantially unsolidified state prior to solidifying the precursors, blending the precursors with the ion-exchange particles to form a mixture and solidifying the mixture to form a solid polymeric composition. Article of manufacture production methods are provided that can include: incorporating a solid polymeric composition into an article of manufacture, the solid polymeric composition including a polymer matrix and a plurality of ion-exchange particles distributed within the polymer matrix.