| 초록 |
Introducing plasticizing additives on brittle D-A type conjugated polymer boosts the mechanical properties of diketopyrrolopyrole-based semiconducting copolymers’ ductility and charge transport ability in deformed status. However, there has been a lack of understanding the correlation between the additives and their effects on amorphous phase, mobile amorphous fraction (MAF) and rigid amorphous fraction (RAF), particularly with conjugated polymer containing diketopyrrolopyrrole (DPP) as the acceptor moiety. Moreover, the additive method using solution blend strategy facilitates mechanical properties into 3 times higher than the pure system by blending them. Also, different additive induces the significantly dissimilar results of the mechanical property and changed glass transition temperature of MAF and RAF depends on the species of the additives. These results represent important progress to comprehend the interplay between additives on MAF and RAF according to chain mobility. |
