Shear thinning of unentangled flexible polymer liquids

2006 ◽  
Vol 46 (5) ◽  
pp. 569-575 ◽  
Author(s):  
R. H. Colby ◽  
D. C. Boris ◽  
W. E. Krause ◽  
S. Dou
Keyword(s):  
Shear Thinning ◽  
Flexible Polymer ◽  
Polymer Liquids

scholarly journals Entangled chain polymer liquids under continuous shear deformation: consequences of a microscopically anharmonic confining tube

Soft Matter ◽  
2018 ◽  
Vol 14 (34) ◽  
pp. 7052-7063 ◽  
Author(s):  
Shi-Jie Xie ◽  
Kenneth S. Schweizer
Keyword(s):  
Shear Deformation ◽  
Chain Polymer ◽  
Rheological Response ◽  
Flexible Polymer ◽  
Continuous Shear ◽  
Polymer Liquids ◽  
Induced Changes

Deformation-induced changes of tube confinement field significantly modifies the shear rheological response of entangled flexible polymer liquids at WiR < 1.

Theory of the dynamics of tagged chains in interacting polymer liquids: general theory

1994 ◽  
Vol 4 (10) ◽  
pp. 1411-1425 ◽  
Author(s):  
T. A. Vilgis ◽  
U. Genz
Keyword(s):  
General Theory ◽  
Polymer Liquids

EXPERIMENTAL CHARACTERIZATION OF HORIZONTAL PIPE SLUG FLOW OF AIR/SHEAR-THINNING FLUID

2017 ◽  
Author(s):  
Juliana Loureiro ◽  
Atila Pantaleão Silva Freire ◽  
Rafael Baungartner
Keyword(s):  
Slug Flow ◽  
Shear Thinning ◽  
Experimental Characterization ◽  
Horizontal Pipe ◽  
Shear Thinning Fluid

A Monte Carlo Study of Flexible Polymer Chain Conformations in Restricted Volumes. I. A Model for Insoluble Blocks Conformations in Swollen Cores of Multimolecular Spherical Block Copolymer Micelles

1993 ◽  
Vol 58 (10) ◽  
pp. 2290-2304 ◽  
Author(s):  
Zuzana Limpouchová ◽  
Karel Procházka
Keyword(s):  
Monte Carlo ◽  
Block Copolymer ◽  
Monte Carlo Study ◽  
Volume Effect ◽  
Micellar Systems ◽  
Flexible Polymer ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Chain Conformations ◽  
Chain Lengths

Monte Carlo simulations of chain conformations in a restricted spherical volume at relatively high densities of segments were performed for various numbers of chains, N, and chain lengths (number of segments), L, on a tetrahedral lattice. All chains are randomly end-tethered to the surface of the sphere. A relatively uniform surface density of the tethered ends is guaranteed in our simulations. A simultaneous self-avoiding walk of all chains creates starting conformations for a subsequent equilibration. A modified algorithm similar to that of Siepmann and Frenkel is used for the equilibration of the chain conformations. In this paper, only a geometrical excluded volume effect of segments is considered. Various structural and conformational characteristics, e.g. segment densities gS(r), free end densities gF(r) as functions of the position in the sphere (a distance from the center), distributions of the tethered-to-free end distances, ρTF(rTF), etc. are calculated and their physical meaning is discussed. The model is suitable for studies of chain conformations is swollen cores of multimolecular block copolymer micelles and for interpretation of non-radiative excitation energy migration in polymeric micellar systems.

scholarly journals ALD Deposited ZnO:Al Films on Mica for Flexible PDLC Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1011
Author(s):  
Dimitre Z. Dimitrov ◽  
Zih Fan Chen ◽  
Vera Marinova ◽  
Dimitrina Petrova ◽  
Chih Yao Ho ◽  
...  
Keyword(s):  
Near Infrared ◽  
Atomic Layer ◽  
Optical Transmittance ◽  
Force Microscopy ◽  
Flexible Polymer ◽  
Layer Deposition ◽  
Polymer Dispersed ◽  
Muscovite Mica ◽  
Infrared Spectral ◽  
Continuous Bending

In this work, highly conductive Al-doped ZnO (AZO) films are deposited on transparent and flexible muscovite mica substrates by using the atomic layer deposition (ALD) technique. AZO-mica structures possess high optical transmittance at visible and near-infrared spectral range and retain low electric resistivity, even after continuous bending of up to 800 cycles. Structure performances after bending tests have been supported by atomic force microscopy (AFM) analysis. Based on performed optical and electrical characterizations AZO films on mica are implemented as transparent conductive electrodes in flexible polymer dispersed liquid crystal (PDLC) devices. The measured electro-optical characteristics and response time of the proposed devices reveal the higher potential of AZO-mica for future ITO-free flexible optoelectronic applications.

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