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8,747 Newest Publications about the topic molecular weight

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Molecular weight prediction in polystyrene blends. Unprecedented use of a genetic algorithm in pulse field gradient spin echo (PGSE) NMR

19-Jan-2018 | Francisco M. Arrabal-Campos; José D. Álvarez; Amador García-Sancho; Ignacio Fernández, Soft Matter, 2018

A genetic algorithm that uses boxcar functions (diffGA) has been applied for the first time in PGSE NMR. It reconstructs accurate diffusion coefficients for all the components of the mixture, and therefore predicts correct weight-average molecular weights for all of them. The results reported ...

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Molecular weight prediction in polystyrene blends. Unprecedented use of a genetic algorithm in pulse field gradient spin echo (PGSE) NMR

19-Jan-2018 | Francisco M. Arrabal-Campos; José D. Álvarez; Amador García-Sancho; Ignacio Fernández, Soft Matter, 2018

A genetic algorithm that uses boxcar functions (diffGA) has been applied for the first time in PGSE NMR. It reconstructs accurate diffusion coefficients for all the components of the mixture, and therefore predicts correct weight-average molecular weights for all of them. The results reported ...

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Frontispiece: Low Molecular Weight Supramolecular Gels Under Shear: Rheology as the Tool for Elucidating Structure–Function Correlation

19-Jan-2018 | Arnab Dawn, Harshita Kumari, Chemistry - A European Journal, 2018

Rheological studies on supramolecular gel phase materials offer an extensive insight of the structure‐function relationship lies in assembly properties of the molecules participated. The outcome of rheological experiments becomes even more interpretive when a concurrent experiment like ...

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Investigation of the Internal Chemical Composition of Chitosan-Based LbL Films by Depth-Profiling X-ray Photoelectron Spectroscopy (XPS) Analysis

19-Jan-2018 | Thiago B. Taketa; Danilo M. dos Santos; Anderson Fiamingo; Juliana M. Vaz; Marisa M. Beppu; Sérgio P. Campana-Filho; ..., Langmuir, 2018

Chitosan-based thin films were assembled using the layer-by-layer technique, and the axial composition was accessed using X-ray photoelectron spectroscopy with depth profiling. Chitosan (CHI) samples possessing different degrees of acetylation (DA̅) and molecular weight (Mv̅) produced via the ...

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Sensitive detection of fluorescence in western blotting by merging images

19-Jan-2018 | Yukari Kondo; Shinichiro Higa; Takeshi Iwasaki; Tomoya Matsumoto; Kazumitsu Maehara; Akihito Harada; Yoshihiro Baba; ..., PLoS ONE, 2018

by Yukari Kondo, Shinichiro Higa, Takeshi Iwasaki, Tomoya Matsumoto, Kazumitsu Maehara, Akihito Harada, Yoshihiro Baba, Masatoshi Fujita, Yasuyuki Ohkawa The western blotting technique is widely used to analyze protein expression levels and protein molecular weight. The chemiluminescence method ...

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Supramolecular Gels Derived from the Salts of Variously substituted Phenylacetic Acid and Dicyclohexyl Amine: Design, Synthesis, Structures and Dye Adsorption

18-Jan-2018 | Parthasarathi Dastidar, Rajdip Roy, Tapas Kumar Adalder, Chemistry - An Asian Journal, 2018

A well‐studied supramolecular synthon namely secondary ammonium monocarboxylate (SAM) was exploited to generate a new series of organic salts derived from variously substituted phenylacetic acid (PA) and dicyclohexyl amine (DCA) as potential low molecular weight gelators (LMWGs). As much as 25% ...

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Role of Thickness Confinement on Relaxations of the Fast Component in a Miscible A/B Blend

18-Jan-2018 | Ravi P. Sharma; Ban Xuan Dong; Peter F. Green, Macromolecules, 2018

Spatial compositional heterogeneity strongly influences the dynamics of the A and B components of bulk miscible blends. Its effects are especially apparent in mixtures, such as poly(vinyl methyl ether) (PVME)/polystyrene (PS), where there exist significant disparities between the component glass ...

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Polymer nanodiscs and macro-nanodiscs of a varying lipid composition

17-Jan-2018 | Venkata Sudheer Kumar Ramadugu; Giacomo Maria Di Mauro; Thirupathi Ravula; Ayyalusamy Ramamoorthy, Chemical Communication, 2018

Polymer lipid nanodiscs have enabled some exciting structural biology and nanobiotechnology applications. The use of a small molecular weight polymer (SMA-EA) has been demonstrated to dramatically increase the size of nanodiscs (up to ∼60 nm diameter). Here, we report the first demonstration of ...

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Organocatalytic Synthesis and Evaluation of Polycarbonate Pendant Polymer:β-Cyclodextrin-Based Nucleic Acid Delivery Vectors

17-Jan-2018 | Kyle J. Wright; Vivek D. Badwaik; Shayak Samaddar; Seok-Hee Hyun; Kristof Glauninger; Taeyoon Eom; David H. Thompson, Macromolecules, 2018

A family of mPEG-b-polycarbonate (mPEG-PC) diblock pendant polymers were synthesized from trimethylene carbonate and other cyclic carbonate monomers bearing hydrophobic guest ligands via organocatalytic ring-opening polymerization using 1,4,5-triazabicyclo[4.4.0]dec-5-ene catalyst or ...

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Biaxial Orientation of Poly(ethylene 2,5‐furandicarboxylate): An Explorative Study

16-Jan-2018 | Jesper G. van Berkel, Nathanaël Guigo, Jeffrey J. Kolstad, Nicolas Sbirrazzuoli, Macromolecular Materials and Engineering, 2018

Abstract The biaxial orientation behavior of poly(ethylene 2,5‐furandicarboxylate) (PEF) is studied in comparison to poly(ethylene terephthalate) (PET). PEF is a polyester that can be produced through similar steps as PET but using 100% biobased 2,5‐furandicarboxylic acid instead of ...

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