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From equilibrium lamellae to out-of-equilibrium cylinders in triblock copolymer nanolayers obtained via multilayer coextrusion

Montana, Juan-Sebastián; Roland, Sébastien; Richaud, Emmanuel; Miquelard-Garnier, Guillaume

Customer publications

From equilibrium lamellae to out-of-equilibrium cylinders in triblock copolymer nanolayers obtained via multilayer coextrusion

Montana, Juan-Sebastián; Roland, Sébastien; Richaud, Emmanuel; Miquelard-Garnier, Guillaume

Multilayer coextrusion was used to obtain nanolayered films of self-assembled commercial triblock copolymer poly(methyl methacrylate-b-butyl acrylate-b-methyl methacrylate) (MAM) confined by poly(methyl methacrylate) (PMMA). The MAM layer thickness was varied from 30 nm to 500 nm (i.e. roughly 1 to 15–20 nanodomains) by changing either the number of multiplying elements or the chill…
D–A1–D–A2 Copolymer Based on Pyridine-Capped Diketopyrrolopyrrole with Fluorinated Benzothiadiazole for High-Performance Ambipolar Organic Thin-Film Transistors

Li, Ping; Xu, Long; Shen, Hongguang; Duan, Xianming; Zhang, Jianqi; Wei, Zhixiang; Yi, Zhengran; Di, Chong-an; Wang, Shuai

Customer publications

D–A1–D–A2 Copolymer Based on Pyridine-Capped Diketopyrrolopyrrole with Fluorinated Benzothiadiazole for High-Performance Ambipolar Organic Thin-Film Transistors

Li, Ping; Xu, Long; Shen, Hongguang; Duan, Xianming; Zhang, Jianqi; Wei, Zhixiang; Yi, Zhengran; Di, Chong-an; Wang, Shuai

A novel donor–acceptor–donor–acceptor (D–A1–D–A2) π-conjugated copolymer (PDBPyDT2FBT) has been prepared by Stille coupling reaction. It is found that PDBPyDT2FBT exhibits low LUMO energy level mainly because of multiple electron-deficient units and donor–acceptor interaction, which is favorable to obtain more efficient electron injection and transport in organic thin-film transistors (OTFTs).…
Equilibrium Crystallization Temperature of Syndiotactic Polystyrene γ Form

Wang, Hai; Wu, Chun-Ji; Cui, Dong-Mei; Men, Yong-Feng

Customer publications

Equilibrium Crystallization Temperature of Syndiotactic Polystyrene γ Form

Wang, Hai; Wu, Chun-Ji; Cui, Dong-Mei; Men, Yong-Feng

The crystallization behavior of syndiotactic polystyrene (sPS) γ form undergoing annealing at various temperatures was investigated using the thermodynamic phase diagram based on Strobl’s crystallization theory. On the basis of the differential scanning calorimetric results, it was observed that γ form melt-recrystallization occurred at a higher temperature with the increasing…
Enhanced lithium storage performance of hierarchical CuO nanomaterials with surface fractal characteristics

Li, Ang; He, Renyue; Bian, Zhuo; Song, Huaihe; Chen, Xiaohong; Zhou, Jisheng

Customer publications

Enhanced lithium storage performance of hierarchical CuO nanomaterials with surface fractal characteristics

Li, Ang; He, Renyue; Bian, Zhuo; Song, Huaihe; Chen, Xiaohong; Zhou, Jisheng

Self-assembled hierarchical CuO nanostructures with fractal structures were prepared by a mild method and exhibited excellent lithium storage properties, certain of which even demonstrated a high reversible capacity of 827 mAh g−1 at a rate of 0.1 C. An interesting phenomenon was observed that the electrochemical performance varies along with the structure complexity,…
DMPC vesicle structure and dynamics in the presence of low amounts of the saponin aescin

Sreij, Ramsia; Dargel, Carina; Geisler, Philippe; Hertle, Yvonne; Radulescu, Aurel; Pasini, Stefano; Perez, Javier; Moleiro, Lara H.; Hellweg, Thomas

Customer publications

DMPC vesicle structure and dynamics in the presence of low amounts of the saponin aescin

Sreij, Ramsia; Dargel, Carina; Geisler, Philippe; Hertle, Yvonne; Radulescu, Aurel; Pasini, Stefano; Perez, Javier; Moleiro, Lara H.; Hellweg, Thomas

Vesicle shape and bilayer parameters are studied by small-angle X-ray (SAXS) and small-angle neutron (SANS) scattering in the presence of the saponin aescin. We confirm successful incorporation of aescin molecules by analysis of the radii of gyration RG and study furthermore the impact of aescin incorporation on bilayer thickness parameters…
Determination of the packing model of a supramolecular nanofiber via mass-per-length measurement and de novo simulation

Yao, Qingxin; Bao, Qiang; Li, Xinming; Wang, Hui; Yang, Zhenyu; Shi, Xinghua; Gao, Yuan; Xu, Bing

Characteristic dimensionCustomer publicationsFibersOtherSAXSWAXS

Determination of the packing model of a supramolecular nanofiber via mass-per-length measurement and de novo simulation

Yao, Qingxin; Bao, Qiang; Li, Xinming; Wang, Hui; Yang, Zhenyu; Shi, Xinghua; Gao, Yuan; Xu, Bing

Herein, we report an example of using scanning transmission electron microscopy to determine the mass-per-length of supramolecular nanofibers. Together with the measurement of the diameter of nanofibers via transmission electron microscopy, we could estimate the packing density of assembling molecules along the nanofibers. A parallel unbiased de novo simulation screens…
Covalently bonded multimers of Au25(SBut)18 as a conjugated system

Sels, Annelies; Salassa, Giovanni; Cousin, Fabrice; Lee, Lay-Theng; Bürgi, Thomas

Customer publications

Covalently bonded multimers of Au25(SBut)18 as a conjugated system

Sels, Annelies; Salassa, Giovanni; Cousin, Fabrice; Lee, Lay-Theng; Bürgi, Thomas

Aromatic dithiol linkers were used to prepare aggregates of Au25(SR)18 clusters (SR: thiolate) via ligand exchange reactions. Fractions of different aggregate sizes were separated by size exclusion chromatography (SEC). The aggregates were characterized by UV-vis absorption spectroscopy, matrix assisted laser desorption ionization (MALDI) mass spectrometry, nuclear magnetic resonance (NMR)…