From Chlorinated Solvents to Branched Polyethylene: Solvent‐Induced Phase Separation for the Greener Processing of Semiconducting Polymers

2021 ◽  
pp. 2100928
Author(s):  
Yunyun Wu ◽  
Michael U. Ocheje ◽  
Sara S. Mechael ◽  
Yunfei Wang ◽  
Eric Landry ◽  
...  
Keyword(s):  
Phase Separation ◽  
Chlorinated Solvents ◽  
Semiconducting Polymers ◽  
Branched Polyethylene

Phase separation in melt blends of single-site linear and branched polyethylene

Polymer ◽  
2001 ◽  
Vol 42 (13) ◽  
pp. 5689-5694 ◽  
Author(s):  
Bjørn Steinar Tanem ◽  
Aage Stori
Keyword(s):  
Phase Separation ◽  
Single Site ◽  
Branched Polyethylene

scholarly journals Semiconducting/insulating polymer blends with dual phase separation for organic field-effect transistors

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7526-7530 ◽  
Author(s):  
Jung Hun Lee ◽  
Young Hun Lee ◽  
Yeon Hee Ha ◽  
Jaehyuk Kwon ◽  
Seungmoon Pyo ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Blends ◽  
Field Effect ◽  
Alkyl Chain ◽  
Field Effect Transistors ◽  
Semiconducting Polymers ◽  
Dual Phase ◽  
Organic Field Effect Transistors

DPP-based semiconducting polymers with different lengths of alkyl chain spacer were blended with PMMA for fabricating OFETs.

Bulk standards for low-temperature biological x-ray microanalysis

1984 ◽  
Vol 42 ◽  
pp. 282-283
Author(s):  
P. Echlin ◽  
M. McKoon ◽  
E.S. Taylor ◽  
C.E. Thomas ◽  
K.L. Maloney ◽  
...  
Keyword(s):  
Phase Separation ◽  
Low Temperature ◽  
Analytical Method ◽  
Salt Solutions ◽  
Absolute Concentration ◽  
Cooling Process ◽  
X Ray ◽  
The Absolute ◽  
Analytical Procedures ◽  
Electrical Conductors

Although sections of frozen salt solutions have been used as standards for x-ray microanalysis, such solutions are less useful when analysed in the bulk form. They are poor thermal and electrical conductors and severe phase separation occurs during the cooling process. Following a suggestion by Whitecross et al we have made up a series of salt solutions containing a small amount of graphite to improve the sample conductivity. In addition, we have incorporated a polymer to ensure the formation of microcrystalline ice and a consequent homogenity of salt dispersion within the frozen matrix. The mixtures have been used to standardize the analytical procedures applied to frozen hydrated bulk specimens based on the peak/background analytical method and to measure the absolute concentration of elements in developing roots.

Phase separation in sol gel-derived ceramic films of silica-zirconia, alumina-zirconia, and titania-zirconia system

1994 ◽  
Vol 52 ◽  
pp. 646-647
Author(s):  
J. Tong ◽  
L. Eyring
Keyword(s):  
Fracture Toughness ◽  
Phase Separation ◽  
Sol Gel ◽  
Great Influence ◽  
High Strength ◽  
Chemical Durability ◽  
Separation Method ◽  
Toughening Mechanism ◽  
Ceramic Films ◽  
Zirconia Toughened Alumina

There is increasing interest in composites containing zirconia because of their high strength, fracture toughness, and its great influence on the chemical durability in glass. For the zirconia-silica system, monolithic glasses, fibers and coatings have been obtained. There is currently a great interest in designing zirconia-toughened alumina including exploration of the processing methods and the toughening mechanism.The possibility of forming nanocrystal composites by a phase separation method has been investigated in three systems: zirconia-alumina, zirconia-silica and zirconia-titania using HREM. The morphological observations initially suggest that the formation of nanocrystal composites by a phase separation method is possible in the zirconia-alumina and zirconia-silica systems, but impossible in the zirconia-titania system. The separation-produced grain size in silica-zirconia system is around 5 nm and is more uniform than that in the alumina-zirconia system in which the sizes of the small polyhedron grains are around 10 nm. In the titania-zirconia system, there is no obvious separation as was observed in die alumina-zirconia and silica-zirconia system.

Phase separation in fluid additive hard sphere mixtures?

1998 ◽  
Vol 95 (2) ◽  
pp. 131-135 ◽  
Author(s):  
DOUGLAS HENDERSON DEZSO BODA KWONG-YU CHAN
Keyword(s):  
Phase Separation ◽  
Hard Sphere
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