Although a robust and widespread method, the DPv represents only an average value of the cellulose degree of polymerisation. On the other hand, SEC allows for the description of the MMD alongside the determination of the molecular weight averages M r = M n , M w , M z , and therefore represents a more fitting analysis method than the sole DPv to understand carbohydrates degradation patterns in cellulosic pulps . The first intent of this investigation was to compare the MMD of kraft pulps chemically degraded down to the same DPv to see if different MMD evolution patterns would arise, on both unbleached Ko and fully-bleached Fb pulps.