Nanostructures and Dynamics of Macromolecules Bound to Attractive Filler Surfaces

Nanostructures and Dynamics of Macromolecules Bound to Attractive Filler Surfaces

We report in situ nanostructures and dynamics of polybutadiene (PB) chains bound to carbon black (CB) fillers (the so-called “bound polymer layer (BPL)”) in a good solvent. The BPL on the CB fillers was extracted by solvent leaching of a CB-filled PB compound and subsequently dispersed in deuterated...

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Veröffentlicht in:ACS macro letters 2015-08, Vol.4 (8), p.838-842
Hauptverfasser: Jiang, Naisheng, Endoh, Maya K, Koga, Tadanori, Masui, Tomomi, Kishimoto, Hiroyuki, Nagao, Michihiro, Satija, Sushil K, Taniguchi, Takashi
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container_end_page 842
container_issue 8
container_start_page 838
container_title ACS macro letters
container_volume 4
creator Jiang, Naisheng
Endoh, Maya K
Koga, Tadanori
Masui, Tomomi
Kishimoto, Hiroyuki
Nagao, Michihiro
Satija, Sushil K
Taniguchi, Takashi
description We report in situ nanostructures and dynamics of polybutadiene (PB) chains bound to carbon black (CB) fillers (the so-called “bound polymer layer (BPL)”) in a good solvent. The BPL on the CB fillers was extracted by solvent leaching of a CB-filled PB compound and subsequently dispersed in deuterated toluene to label the BPL for small-angle neutron scattering and neutron spin echo techniques. The results demonstrate that the BPL is composed of two regions regardless of molecular weights of PB: the inner unswollen region of ≈ 0.5 nm thick and outer swollen region where the polymer chains display a parabolic profile with a diffuse tail. In addition, the results show that the dynamics of the swollen bound chains can be explained by the so-called “breathing mode” and is generalized with the thickness of the swollen BPL.
doi_str_mv 10.1021/acsmacrolett.5b00368
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