Baileys bubble

Hi all, I have an old lean-to I want to incorporate into my kitchen. My biggest problem is that although it has a damp course, the walls are only single brick. I want to attach insulated plasterboard to the interior and intended to use knauf boards and knauf plasterboard adhesive, dot and dab. However, I am concerned about moisture and damp crossing into the plasterboard through the adhesive. Does the foam insulation (non foil backed) act as a DPM? Will the adhesive hold to the brick wall? Do I need to fix another way? How...... Any help will be appreciated