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Structural Analysis of Melt-Spun Polymer-Optical Poly(Methyl Methacrylate) Fibres by Small-Angle X-ray Scattering and Monte-Carlo Simulation

Polymers (Basel). 2021 Mar 3;13(5):779. doi: 10.3390/polym13050779.ABSTRACTThe structural properties, mainly the spatial variation of density and chain interaction, of melt-spun polymer optical fibres (POFs) are investigated by small-angle X-ray scattering (SAXS) and compared to Monte-Carlo polymer simulations. The amorphous PMMA POFs had been subjected...

Strong Reinforcement Effects in 2D Cellulose Nanofibril-Graphene Oxide (CNF-GO) Nanocomposites due to GO-Induced CNF Ordering

J Mater Chem A Mater. 2020 Sep 14;8(34):17608-17620. doi: 10.1039/D0TA04406G. Epub 2020 Jul 27.ABSTRACTNanocomposites from native cellulose with low 2D nanoplatelet content are of interest as sustainable materials combining functional and structural performance. Cellulose nanofibril-graphene oxide (CNF-GO) nanocomposite films are prepared by a physical...

Searching for Aquamelt Behavior among Silklike Biomimetics during Fibrillation under Flow

J Phys Chem B. 2021 Mar 22. doi: 10.1021/acs.jpcb.1c00647. Online ahead of print.ABSTRACTIn this paper, we elucidate a generic mechanism behind strain-induced phase transition in aqueous solutions of silk-inspired biomimetics by atomistic molecular dynamics simulations. We show the results of modeling of homopeptides polyglycine Gly30 and polyalanine...

Innovatively processed quinoa (Chenopodium quinoa Willd) food: Chemistry, structure and end-use characteristics

J Sci Food Agric. 2021 Mar 12. doi: 10.1002/jsfa.11214. Online ahead of print.ABSTRACTBACKGROUND: Quinoa (Chenopodium quinoa Willd.) flour and processed traditional Peruvian quinoa breakfast foods were studied to evaluate the effect of extrusion and post-processing on protein properties, morphology and nutritional characteristics (amino acids and dietary...

Relaxation phenomenon and swelling behavior of regenerated cellulose fibers affected by organic solvents

Carbohydr Polym. 2021 May 1;259:117656. doi: 10.1016/j.carbpol.2021.117656. Epub 2021 Jan 18.ABSTRACTRegenerated cellulose fibers are extremely sensitive to water. In particular, their mechanical properties are greatly affected by water. Recently, it was clarified that the glass transition temperatures of regenerated cellulose over 500 K can be shifted...

Shear-free mixing to achieve accurate temporospatial nanoscale kinetics through scanning-SAXS: ion-induced phase transition of dispersed cellulose nanocrystals

Lab Chip. 2021 Jan 29. doi: 10.1039/d0lc01048k. Online ahead of print.ABSTRACTTime-resolved in situ characterization of well-defined mixing processes using small-angle X-ray scattering (SAXS) is usually challenging, especially if the process involves changes of material viscoelasticity. In specific, it can be difficult to create a continuous mixing...

Shear-free mixing to achieve accurate temporospatial nanoscale kinetics through scanning-SAXS: ion-induced phase transition of dispersed cellulose nanocrystals.

Related Articles Shear-free mixing to achieve accurate temporospatial nanoscale kinetics through scanning-SAXS: ion-induced phase transition of dispersed cellulose nanocrystals. Lab Chip. 2021 Jan 29;: Authors: Rosén T, Wang R, He H, Zhan C, Chodankar S, Hsiao BS Abstract Time-resolved in...

Exploring the Tunable Optical and Mechanical Properties of Multicomponent Low-Molecular-Weight Gelators.

Related Articles Exploring the Tunable Optical and Mechanical Properties of Multicomponent Low-Molecular-Weight Gelators. Langmuir. 2021 Jan 03;: Authors: Loos JN, Boott CE, Hayward DW, Hum G, MacLachlan MJ Abstract A class of amino acid-based low-molecular-weight gelators (LMWGs) was used...

Structural Changes in Spider Dragline Silk after Repeated Supercontraction-Stretching Processes.

Related Articles Structural Changes in Spider Dragline Silk after Repeated Supercontraction-Stretching Processes. Biomacromolecules. 2020 Nov 18;: Authors: Hu L, Chen Q, Yao J, Shao Z, Chen X Abstract Spider dragline silk is well-known for its excellent combination of strength and extensibility...

Synergistic structures in lyotropic lamellar gels.

Synergistic structures in lyotropic lamellar gels. Soft Matter. 2020 Oct 07;: Authors: Dieterich S, Prévost S, Dargel C, Sottmann T, Giesselmann F Abstract In this work we present a systematic study on the microstructure of soft materials which combine the anisotropy of lyotropic liquid crystals with...

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