Hierarchical Self-Assembly and Dynamics of a Miktoarm Star chimera Composed of Poly(γ-benzyl-L-glutamate), Polystyrene, and Polyisoprene

被引：43

作者：

Gitsas, A. ^{[1
,2
]}

Floudas, G. ^{[1
,2
]}

Mondeshki, M. ^{[3
]}

Lieberwirth, I. ^{[3
]}

Spiess, H. W. ^{[3
]}

Iatrou, H. ^{[4
]}

Hadjichristidis, N. ^{[4
]}

Hirao, A. ^{[5
]}

机构：

[1] Univ Ioannina, Dept Phys, GR-45110 Ioannina, Greece

[2] Fdn Res & Technol Hellas, Biomed Res Inst, GR-71110 Iraklion, Crete, Greece

[3] Max Planck Inst Polymer Res, D-55021 Mainz, Germany

[4] Univ Athens, Dept Chem, GR-15771 Athens, Greece

[5] Tokyo Inst Technol, Grad Sch Sci & Engn, Polymer & Organ Mat Dept, Tokyo 1528552, Japan

来源：

MACROMOLECULES | 2010年 / 43卷 / 04期

关键词：

FUNCTIONALIZED POLYPHENYLENE DENDRIMERS; CROSS-POLARIZATION; DIBLOCK COPOLYMERS; BLOCK-COPOLYMERS; SOLID-STATE; MICROPHASE SEPARATION; TRIBLOCK COPOLYMERS; MOLECULAR-DYNAMICS; NMR; ROD;

D O I：

10.1021/ma902631e

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The hierarchical self-assembly at the submicrometer, nanometer and alpha-helilcal length scales has been Studied in a miktoarm star rod-coil chimera composed of poly(gamma-benzyl-L-glutamate) (PBLG), polystyrene, and polyisoprene blocks by X-ray scattering, solid state NMR, and transmission electron microscopy. The propensity of the rod block toward alpha-helices that are further hexagonally packed gives rise to pure PBLG domains and induces the partial mixing of the two amorphous blocks. These structural results were confirmed by independent dynamic probes at the segmental and alpha-helical level by NMR and dielectric spectroscopy, respectively.

引用

页码：1874 / 1881

页数：8

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