A polymer comprising a conducting or semiconducting segment coupled to a polymer segment having an insulating polymer backbone, the polymer further comprising a RAFT functional group coupled to the polymer segment, wherein there is no RAFT functional group in between the conducting or semiconducting segment and the polymer segment. The exhaust gas re-circulation mixer may include an inlet air port configured to receive inlet air, an outlet configured to release a mixture of the inlet air and exhaust gases and a body integrated with and connecting the inlet air port and the outlet together in fluid communication to form a unitary structure. The environment may be monitored and sensed information collected may be stored or communicated to a remote location. One or more covers are positioned substantially over the first, second and third receptacles, substantially preventing the influx of air into the first, second and third receptacles.