Rheology and dynamics near phase separation in a polymer blend: model and scaling analysis

1991 ◽  
Vol 24 (18) ◽  
pp. 5221-5223 ◽  
Author(s):  
Abdellah Ajji ◽  
Lionel Choplin
Keyword(s):  
Phase Separation ◽  
Polymer Blend ◽  
Scaling Analysis

Two-step phase separation of a polymer mixture. I. New scaling analysis for the main scattering peak

2000 ◽  
Vol 112 (15) ◽  
pp. 6886-6896 ◽  
Author(s):  
Takeji Hashimoto ◽  
Masaki Hayashi ◽  
Hiroshi Jinnai
Keyword(s):  
Phase Separation ◽  
Polymer Mixture ◽  
Scaling Analysis

Mechanical confinement effects on the phase separation morphology of polymer blend thin films

1998 ◽  
Vol 57 (5) ◽  
pp. 5811-5817 ◽  
Author(s):  
K. Dalnoki-Veress ◽  
J. A. Forrest ◽  
J. R. Dutcher
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Polymer Blend ◽  
Confinement Effects

Periodic Porous Stripe Patterning in a Polymer Blend Film Induced by Phase Separation during Spin-Casting

Langmuir ◽  
2008 ◽  
Vol 24 (16) ◽  
pp. 8898-8903 ◽  
Author(s):  
Jae-Kyung Kim ◽  
Kentaro Taki ◽  
Shinsuke Nagamine ◽  
Masahiro Ohshima
Keyword(s):  
Phase Separation ◽  
Polymer Blend ◽  
Blend Film ◽  
Spin Casting ◽  
Polymer Blend Film

Phase Separation Kinetics of a Polymer Blend Modified by Random and Block Copolymer Additives

2001 ◽  
Vol 34 (3) ◽  
pp. 514-521 ◽  
Author(s):  
Bethany Barham ◽  
Kari Fosser ◽  
Gretchen Voge ◽  
Dean Waldow ◽  
Adel Halasa
Keyword(s):  
Phase Separation ◽  
Block Copolymer ◽  
Polymer Blend ◽  
Phase Separation Kinetics ◽  
Kinetics Of ◽  
Separation Kinetics

Near-field photoconductivity imaging of a conjugated polymer blend

2001 ◽  
Vol 708 ◽  
Author(s):  
R. Riehn ◽  
R. Stevenson ◽  
J.J.M. Halls ◽  
D.R. Richards ◽  
D.-J. Kang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Chemical Composition ◽  
Optical Microscopy ◽  
Polymer Blend ◽  
Conjugated Polymer ◽  
Near Field ◽  
Absorbed Energy ◽  
Generation Efficiency ◽  
Good Correspondence ◽  
Photocurrent Generation

ABSTRACTWe report combined scanning near-field optical microscopy (SNOM) and near-field photocurrent (NPC) imaging of a binary conjugated polymer blend. We find phase separation on a scale of about 5 μm, with a good correspondence between topographic, fluorescence, and photocurrent images. We excited at 488 nm, a wavelength at which only one of the two polymers absorbs light. Under this illumination regions that are high in the topography image show high luminescence and photocurrent.The photoluminescence (PL) efficiencies in the different regions of the sample were determined by calculating the absorbed energy using the Bethe-Bouwkamp model, and knowledge about the chemical composition of the different phases of the polymer blend. The calculation also allowed us to conclude that the photocurrent generation efficiency (current/absorbed photons) of the different polymer phases is comparable within the limit of confidence of this experiment (±10 %).

The Influence of the Solvent Evaporation Rate on the Phase Separation and Electrical Performances of Soluble Acene-Polymer Blend Semiconductors

2011 ◽  
Vol 22 (2) ◽  
pp. 267-281 ◽  
Author(s):  
Wi Hyoung Lee ◽  
Donghoon Kwak ◽  
John E. Anthony ◽  
Hwa Sung Lee ◽  
Hyun Ho Choi ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Blend ◽  
Evaporation Rate ◽  
Solvent Evaporation
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