An anti-fouling device for an internal combustion engine aftertreatment injector includes a member mountable as an interface between an exhaust conduit and the aftertreatment injector. In some embodiments, the bridge includes a processor that translates different routing numbers received from the bus into different addresses and routing numbers for devices connected to the bridge. The management members may be angled relative to a front edge of the base plate. A pointer between the first PDR and the second PDR is generated. Also described are methods for preparing a multi-branched polymer as well as a porous insulating film including a multi-branched polymer.