Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

2021 ◽  
Author(s):  
Hao Yang ◽  
Baikang Zhu ◽  
Lijing Zhu ◽  
Zhixiang Zeng ◽  
Gang Wang ◽  
...  
Keyword(s):  
Phase Separation

In situ microscopic studies on the structures and phase behaviors of SF/PEG films using solid-state NMR and Raman imaging

2016 ◽  
Vol 18 (24) ◽  
pp. 16353-16360 ◽  
Author(s):  
Congheng Chen ◽  
Ting Yao ◽  
Sidong Tu ◽  
Weijie Xu ◽  
Yi Han ◽  
...  
Keyword(s):  
Phase Separation ◽  
Solid State Nmr ◽  
Random Coil ◽  
Rich Domain ◽  
Microscopic Studies ◽  
Helix Conformation ◽  
Phase Behaviors ◽  
Protein Rich ◽  
Β Sheet

SF was incompatible with PEG in some extent, and the phase separation took place in their blend film. The conformation of SF in the interface between SF and PEG was changed to the β-sheet, while that in the protein-rich domain remained in the random coil and/or helix conformation.

Rubber-modified epoxies: In situ detection of the phase separation by differential scanning calorimetry

Polymer ◽  
1993 ◽  
Vol 34 (18) ◽  
pp. 3960-3961 ◽  
Author(s):  
Dong Pu Fang ◽  
C.C. Riccardi ◽  
R.J.J. Williams
Keyword(s):  
Differential Scanning Calorimetry ◽  
Phase Separation ◽  
Scanning Calorimetry ◽  
In Situ Detection

Structure of Microphase-Separated Silica/Siloxane Molecular Composites

1989 ◽  
Vol 171 ◽  
Author(s):  
Dale W. Schaefer ◽  
James E. Mark ◽  
David Mccarthy ◽  
Li Jian ◽  
C. -C. Sun ◽  
...  
Keyword(s):  
Phase Separation ◽  
Kinetic Studies ◽  
Organic Content ◽  
Small Particles ◽  
X Ray ◽  
Filled Elastomers ◽  
Polymeric Networks ◽  
Large Particles ◽  
Molecular Composites

ABSTRACTThe structure of several classes of silica/siloxane molecular composites is investigated using small-angle x-ray and neutron scattering. These filled elastomers can be prepared through different synthethic protocols leading to a range of fillers including particulates with both rough and smooth surfaces, particulates with dispersed interfaces, and polymeric networks. We also find examples of bicontinuous filler phases that we attribute to phase separation via spinodal decomposition. In-situ kinetic studies of particulate fillers show that the precipitate does not develop by conventional nucleation-and-growth. We see no evidence of growth by ripening whereby large particles grow by consumption of small particles. Rather, there appears to be a limiting size set by the elastomer network itself. Phase separation develops by continuous nucleation of particles and subsequent growth to the limiting size. We also briefly report studies of polymer-toughened glasses. In this case, we find no obvious correlation between organic content and structure.

scholarly journals Synchrotron X-ray In Situ Tomography of Thermally Induced Phase Separation of Polylactic Acid in 1,4-Dioxane Solution

2018 ◽  
Vol 18 (12) ◽  
pp. 7496-7503 ◽  
Author(s):  
Swann Gay ◽  
Brice Calvignac ◽  
Landry Ouanssi Kamtcheu ◽  
Thomas Beuvier ◽  
Elodie Boller ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polylactic Acid ◽  
Dioxane Solution ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
X Ray

In-Situ Observation of Phase Separation During Growth of Cs2LiLaBr6:Ce Crystals Using Energy-Resolved Neutron Imaging

2017 ◽  
Vol 17 (12) ◽  
pp. 6372-6381 ◽  
Author(s):  
Anton S. Tremsin ◽  
Didier Perrodin ◽  
Adrian S. Losko ◽  
Sven C. Vogel ◽  
Takenao Shinohara ◽  
...  
Keyword(s):  
Phase Separation ◽  
Neutron Imaging ◽  
In Situ Observation

In situ high temperature X-ray diffraction study of the kinetics of phase separation in the uranium-plutonium mixed oxide (U0.55Pu0.45)O2-x

2014 ◽  
Vol 1645 ◽  
Author(s):  
Romain VAUCHY ◽  
Renaud.C. BELIN ◽  
Anne-Charlotte ROBISSON ◽  
Fiqiri HODAJ
Keyword(s):  
Phase Separation ◽  
Room Temperature ◽  
Mixed Oxides ◽  
Oxygen Stoichiometry ◽  
X Ray Diffraction ◽  
Fundamental Interest ◽  
X Ray ◽  
Uranium Plutonium ◽  
Kinetics Of

ABSTRACTUranium-plutonium mixed oxides incorporating high amounts of plutonium are considered for future nuclear reactors. For plutonium content higher than 20%, a phase separation occurs, depending on the temperature and on the oxygen stoichiometry. This phase separation phenomenon is still not precisely described, especially at high plutonium content. Here, using an original in situ fast X-ray diffraction device dedicated to radioactive materials, we evidenced a phase separation occurring during rapid cooling from 1773 K to room temperature at the rate of 0.05 and 2 K per second for a (U0.55Pu0.45)O2-x compound under a reducing atmosphere. The results show that the cooling rate does not impact the lattice parameters of the obtained phases at room temperature but their fraction. In addition to their obvious fundamental interest, these results are of utmost importance in the prospect of using uranium-plutonium mixed oxides with high plutonium content as nuclear fuels.

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