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Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weight

Genix, Anne-Caroline; Bocharova, Vera; Kisliuk, Alexander; Carroll, Bobby; Zhao, Sheng; Oberdisse, Julian; Sokolov, Alexei P.

 Customer publications

Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weight

Genix, Anne-Caroline; Bocharova, Vera; Kisliuk, Alexander; Carroll, Bobby; Zhao, Sheng; Oberdisse, Julian; Sokolov, Alexei P.

The addition of nanoparticles to a polymer matrix is a well-known process to improve the mechanical properties of polymers. Many studies of mechanical reinforcement in polymer nanocomposites (PNCs) focus on rubbery matrices; however, much less effort concentrates on the factors controlling the mechanical performance of the technologically important glassy PNCs.…
The Influence of Space Restriction on the Mechanical Properties of Isotactic Polypropylene/Reduced Graphene Oxide Nanocomposite Injection Bars

Yao, Guibin; Fang, Yuwei; Chi, Enyi; Bao, Jinbiao; Zhang, Li; Li, Yiguo; Zhang, Jianqiang; Wang, Zongbao

 Customer publications

The Influence of Space Restriction on the Mechanical Properties of Isotactic Polypropylene/Reduced Graphene Oxide Nanocomposite Injection Bars

Yao, Guibin; Fang, Yuwei; Chi, Enyi; Bao, Jinbiao; Zhang, Li; Li, Yiguo; Zhang, Jianqiang; Wang, Zongbao

Isotactic polypropylene (iPP)/reduced graphene oxide (RGO) nanocomposite bars were prepared by injection molding and the effects of RGO on the iPP matrix were investigated via differential scanning calorimetry, two dimensional wide angle X-ray diffraction (2D WAXD) and small angle X-ray scattering (2D SAXS) techniques. It is demonstrated that RGO is…
Structural and Nonlinear Optical Characteristics of In Vitro Glycation of Human Low-Density Lipoprotein, as a Function of Time

de Queiroz Mello, Ana Paula; Albattarni, Ghadeer; Espinosa, Daniel Humberto Garcia; Reis, Dennys; Figueiredo Neto, Antonio Martins

 Customer publications

Structural and Nonlinear Optical Characteristics of In Vitro Glycation of Human Low-Density Lipoprotein, as a Function of Time

de Queiroz Mello, Ana Paula; Albattarni, Ghadeer; Espinosa, Daniel Humberto Garcia; Reis, Dennys; Figueiredo Neto, Antonio Martins

Modified low-density lipoprotein (LDL) is a well-known risk marker for diabetes and cardiovascular disease. In vitro and in vivo studies have shown that native LDL particles, when modified by oxidation and/or glycation processes, become proatherogenic. Other studies have shown that high LDL concentrations also contribute to atherogenic diseases. In the…
Blue Luminescent Organic Light Emitting Diode Devices of a New Class of Star-Shaped Columnar Mesogens Exhibiting π–π Driven Supergelation

De, Joydip; Gupta, Santosh Prasad; Sudheendran Swayamprabha, Sujith; Dubey, Deepak Kumar; Bala, Indu; Sarkar, Ishan; Dey, Gourab; Jou, Jwo-Huei; Ghosh, Subrata; Pal, Santanu Kumar

 Customer publications

Blue Luminescent Organic Light Emitting Diode Devices of a New Class of Star-Shaped Columnar Mesogens Exhibiting π–π Driven Supergelation

De, Joydip; Gupta, Santosh Prasad; Sudheendran Swayamprabha, Sujith; Dubey, Deepak Kumar; Bala, Indu; Sarkar, Ishan; Dey, Gourab; Jou, Jwo-Huei; Ghosh, Subrata; Pal, Santanu Kumar

Five new, star-shaped compounds containing a central oligo(phenylenevinylene) core carrying six alkoxy chains were synthesized, and with varying alkyl chains the changes in their supramolecular assembly were explored by small and wide-angle X-ray scattering (SAXS/WAXS) studies. For the shortest peripheral alkoxy chain (3.1; R = 3,7-dimethyl octyl) lamellar stacking was…
Direct formation of form I’ crystals in polybutene-1/polypropylene blend enhanced by cold crystallization

Zhong, Zhenxing; Ge, Huan; Su, Zhaohui

 Customer publications

Direct formation of form I’ crystals in polybutene-1/polypropylene blend enhanced by cold crystallization

Zhong, Zhenxing; Ge, Huan; Su, Zhaohui

During commercial processing of isotactic polybutene-1 (PB-1), crystallization kinetics favor form II while thermodynamics favor the more desired form I/I′, and once the former is adopted, transformation to the latter is extremely slow. In this work, the cold crystallization behavior of PB-1/iPP (isotactic polypropylene) blend (90/10) is investigated with emphasis…
On-Axis Alignment of Protein Nanocage Assemblies from 2D to 3D through the Aromatic Stacking Interactions of Amino Acid Residues

Zhou, Kai; Zang, Jiachen; Chen, Hai; Wang, Wenming; Wang, Hongfei; Zhao, Guanghua

 Customer publications

On-Axis Alignment of Protein Nanocage Assemblies from 2D to 3D through the Aromatic Stacking Interactions of Amino Acid Residues

Zhou, Kai; Zang, Jiachen; Chen, Hai; Wang, Wenming; Wang, Hongfei; Zhao, Guanghua

On-Axis Alignment of Protein Nanocage Assemblies from 2D to 3D through the Aromatic Stacking Interactions of Amino Acid…
Nafion membrane channel structure studied by small-angle X-ray scattering and Monte Carlo simulations

Fernandez Bordín, S. P.; Andrada, H. E.; Carreras, A. C.; Castellano, G. E.; Oliveira, R. G.; Galván Josa, V. M.

 Customer publications

Nafion membrane channel structure studied by small-angle X-ray scattering and Monte Carlo simulations

Fernandez Bordín, S. P.; Andrada, H. E.; Carreras, A. C.; Castellano, G. E.; Oliveira, R. G.; Galván Josa, V. M.

The structure of Nafion 117 membranes was studied through SAXS experiments and 2D pattern simulations. Measurements were taken for different moisture conditions by synchrotron radiation, and for different temperatures through X-ray tube irradiation. The experimental profiles were fitted through simulations based on a new structural model including: the amorphous polymer…
Generating Nanoscopic Patterns in Conductivity within a Poly(3-hexylthiophene) Crystal via Bias-Controlled Scanning Probe Nanolithography

Wang, Binghua; Zhang, Bin; Shen, Changyu; Chen, Jingbo; Reiter, Günter

 (Natural) polymersCharacteristic dimensionCustomer publicationsGIWAXSOrientation analysisPolymer researchSelf-assembled material

Generating Nanoscopic Patterns in Conductivity within a Poly(3-hexylthiophene) Crystal via Bias-Controlled Scanning Probe Nanolithography

Wang, Binghua; Zhang, Bin; Shen, Changyu; Chen, Jingbo; Reiter, Günter

Generating Nanoscopic Patterns in Conductivity within a Poly(3-hexylthiophene) Crystal via Bias-Controlled Scanning Probe…
Hydrogel and Organogel Formation by Hierarchical Self-Assembly of Cyclic Peptides Nanotubes

Shaikh, Huda; Rho, Julia Y.; Macdougall, Laura J.; Gurnani, Pratik; Lunn, Andrew M.; Yang, Jie; Huband, Steve; Mansfield, Edward D. H.; Peltier, Raoul; Perrier, Sebastien

 Customer publications

Hydrogel and Organogel Formation by Hierarchical Self-Assembly of Cyclic Peptides Nanotubes

Shaikh, Huda; Rho, Julia Y.; Macdougall, Laura J.; Gurnani, Pratik; Lunn, Andrew M.; Yang, Jie; Huband, Steve; Mansfield, Edward D. H.; Peltier, Raoul; Perrier, Sebastien

Breaking away from the linear structure of previously reported peptide-based gelators, this study reports the first example of gel formation based on the use of cyclic peptides made of alternating d- and l-amino acids, known to self-assemble in solution to form long nanotubes. Herein, a library of cyclic peptides was…
Stearyl Methacrylate-Based Polymers as Crystal Habit Modifiers for Triacylglycerols

Jennings, James; Butler, Michael F.; McLeod, Madeleine; Csányi, Evelin; Ryan, Anthony J.; Mykhaylyk, Oleksandr O.

 Customer publications

Stearyl Methacrylate-Based Polymers as Crystal Habit Modifiers for Triacylglycerols

Jennings, James; Butler, Michael F.; McLeod, Madeleine; Csányi, Evelin; Ryan, Anthony J.; Mykhaylyk, Oleksandr O.

Triacrylglycerols (TAGs) are ubiquitous and naturally occurring fat molecules that can make materials with diverse textural, mechanical, and optical properties. These properties are intimately linked to their complex hierarchical crystal structures, which can be controlled by additives that interfere with crystallization. A series of semicrystalline, bottlebrush-like copolymers have been…
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