TY  - JOUR
AB  - We investigate the electrical response of the insulating diblock copolymer system (DBC) filled with conductive spherical fillers depending on the affinities of these fillers for copolymer blocks and the interaction between fillers. We demonstrate that the contrast (difference) between the affinities of the fillers for dissimilar copolymer blocks is a decisive factor that determines the distribution of these fillers in the DBC system. The distribution of filler particles, in turn, is found to be directly related to the electrical response of the DBC-particle composite. In particular, increasing the affinity contrast above a certain threshold value results in the insulator-conductor transition. This transition is found to be caused by the preferential localization of the fillers in the microphases of the DBC system having larger affinity for these fillers. The effect of the interaction between fillers is found to be secondary to the described effect of the affinity contrast that dominates in determining the distribution of fillers in the composite. This effect of the inter-particle interactions is shown to be significant only when the affinity contrast and filler volume fraction are sufficiently large.
AU  - Chervanyov, Alexander
DA  - 2020-07-25
DO  - 10.17879/04049603610
KW  - diblock copolymers
KW  - fillers
KW  - conduction
LA  - eng
N1  - Polymers 12 (2020) 8, 1659, 1-17
N1  - Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
N1  - Förderer: Deutsche Forschungsgemeinschaft / Projektnummer: 324874376
N1  - Funding organisation: Deutsche Forschungsgemeinschaft / Project number: 324874376
PY  - 2020-07-25
TI  - Conductivity of Insulating Diblock Copolymer System Filled with Conductive Particles Having Different Affinities for Dissimilar Copolymer Blocks
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-84039560649
Y2  - 2024-12-26T19:16:12
ER  -