Journal ArticleDOI
Hierarchical Self-Assembly and Dynamics of a Miktoarm Star chimera Composed of Poly(gamma-benzyl-L-glutamate), Polystyrene, and Polyisoprene
Antonis Gitsas,George Floudas,Mihail Mondeshki,Ingo Lieberwirth,Hans Wolfgang Spiess,H. Iatrou,Nikolaos Hadjichristidis,Akira Hirao +7 more
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TLDR
In this paper, the hierarchical self-assembly at submicrometer, nanometer and α-helical length scales has been studied in a miktoarm star rod−coil chimera composed of poly(γ-benzyl-l-glutamate) (PBLG), polystyrene, and polyisoprene blocks by X-ray scattering, solid state NMR, and transmission electron microscopy.Abstract:
The hierarchical self-assembly at the submicrometer, nanometer and α-helical length scales has been studied in a miktoarm star rod−coil chimera composed of poly(γ-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 α-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 α-helical level by NMR and dielectric spectroscopy, respectively.read more
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Interplay of Structure and Dynamics in Functional Macromolecular and Supramolecular Systems As Revealed by Magnetic Resonance Spectroscopy
Journal ArticleDOI
Self-Assembly at Different Length Scales: Polyphilic Star-Branched Liquid Crystals and Miktoarm Star Copolymers
Goran Ungar,Goran Ungar,Carsten Tschierske,Volker Abetz,Robert Hołyst,Martin A. Bates,Feng Liu,Marko Prehm,Robert Kieffer,Xiangbing Zeng,Martin Walker,Benjamin Glettner,Andrzej Zywocinski +12 more
TL;DR: The diversity of phase morphologies observed recently in star-branched liquid-crystalline and polymeric compounds containing at least three immiscible segments is reviewed in this article.
Journal ArticleDOI
Recent Advances and Future Perspectives of Synthetic Polypeptides from N-Carboxyanhydrides
TL;DR: In this article, the authors highlight several key advances in the chemical synthesis and materials application of synthetic polypeptides and discuss promising future directions in this area, including the development of various controlled polymerization methodologies, deeper understanding on secondary structures, and the discovery of new assembly behaviors and applications.
Journal ArticleDOI
Sub-ns triplet state formation by non-geminate recombination in PSBTBT:PC70BM and PCPDTBT:PC60BM organic solar cells
Fabian Etzold,Ian A. Howard,Nina Forler,Anton Melnyk,Denis Andrienko,Michael Ryan Hansen,Frédéric Laquai,Frédéric Laquai +7 more
TL;DR: In this article, the authors compared the solid-state morphology and photo-generated charge carrier dynamics in low-bandgap polymer:fullerene bulk heterojunction photovoltaic blends using the donor-acceptor type copolymers PCPDTBT or its silicon-substituted analogue PSBTBT as donors.
Journal ArticleDOI
Hierarchical Smectic Self-Assembly of an ABC Miktoarm Star Terpolymer with a Helical Polypeptide Arm
Susanna Junnila,Nikolay Houbenov,Sirkku Hanski,Hermis Iatrou,Akira Hirao,Nikos Hadjichristidis,Olli Ikkala +6 more
TL;DR: In this article, the first hierarchical smectic self-assembly in mikto-arm star terpolymers was demonstrated using a mesogenic α-helical polypeptide arm (poly(e-tert-butyloxycarbonyl-l-lysine), PBLL).
References
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Heteronuclear decoupling in rotating solids
Andrew E. Bennett,Chad M. Rienstra,Michèle Auger,Michèle Auger,K. V. Lakshmi,K. V. Lakshmi,Robert G. Griffin +6 more
TL;DR: In this article, a simple two pulse phase modulation (TPPM) scheme was proposed to reduce the residual linewidths arising from insufficient proton decoupling power in double resonance magic angle spinning (MAS) experiments.
Journal ArticleDOI
Ramped-Amplitude Cross Polarization in Magic-Angle-Spinning NMR
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Journal ArticleDOI
Dielectric dispersion in solutions of flexible polymers
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