What are you seeing with those papers, and over what timescale?
By far, the main chemical threats to print surfaces come from human respiration products, and from aerosols from cooking and cleaning, or from chemical emissions in the building or even the general locale. Even compost heaps, garbage pails, and stagnant water can put nasty stuff into the air, including sulfides.
If you attach with glue, the majority of any reactions that are going to occur will happen within the first few hours or days, while there is still liquid solvent available to move molecules around. Dried PVA is not a good host for chemical reactions, and the products of any reactions that occurred during the initial liquid phase will likely block further reactions. No transport, no reactions.