Nematic ordering problem as the polymer problem of the excluded volume

Autor: Andrei N. Yakunin

Publikováno v: Open Physics, Vol 1, Iss 2, Pp 355-362 (2003)

Based on a solution of the polymer excluded volume problem, a technique is proposed to estimate some parameters at the isotropic-nematic liquid crystal phase transition (the product of the volume fraction of hard sticks and the ratio of the stick len

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26785b8fe9e0aa3815bc6b74e1dd9aa6
https://doaj.org/article/4f9e12b45283411d9b809deebd870881

Intramolecular long-range correlations in polymer melts: The segmental size distribution and its moments

Autor: Jörg Baschnagel, P. Beckrich, A. Johner, Hendrik Meyer, A. Cavallo, J. P. Wittmer

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2007, 76, pp.011803

Presenting theoretical arguments and numerical results we demonstrate long-range intrachain correlations in concentrated solutions and melts of long flexible polymers which cause a systematic swelling of short chain segments. They can be traced back

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fafc7365fc8045ba49f02deee76beebf
http://arxiv.org/abs/0704.1620

Flow-injection of branched polymers inside nanopores

Autor: Takahiro Sakaue, Elie Raphaël, Pierre-Gilles de Gennes, Françoise Brochard-Wyart

Flexible chains (linear or branched) can be forced to enter into a narrow capillary by using a hydrodynamic flow. Here, we correct our earlier description of this problem by considering the progressive nature of the suction process. We find that the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83e8c9ac9d78329b4534418085789573
https://hal.archives-ouvertes.fr/hal-00004780

Static Properties of a Simulated Supercooled Polymer Melt: Structure Factors, Monomer Distributions Relative to the Center of Mass, and Triple Correlation Functions

Autor: Song-Ho Chong, M. Aichele, Matthias Fuchs, Jörg Baschnagel

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2004, 69 (6), pp.061801. ⟨10.1103/PhysRevE.69.061801⟩

We analyze structural and conformational properties in a simulated bead-spring model of a non-entangled, supercooled polymer melt. We explore the statics of the model via various structure factors, involving not only the monomers, but also the center

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab0e1c5be365d0291dea535edf89420

Pressure-induced reduction of the Landau-Peierls instabilities in a side-chain polymer liquid crystal with reentrant polymorphism

Autor: P. Baroni, Laurence Noirez, G. Pépy

Publikováno v: Physical Review E
Physical Review E, 2003, ⟨10.1103/PhysRevE.67.041714⟩
Physical Review E, American Physical Society (APS), 2003, ⟨10.1103/PhysRevE.67.041714⟩

International audience; Cyanobiphenyl mesogens are known to exhibit partially bilayered smectic A (S Ad) and also reentrant nem-atic (N re) phases. Nematic and smectic orders are coupled parameters which depend both on temperature and pressure. We re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::461a12c69c7e6efdd95e6423e8aa7223
https://doi.org/10.1103/physreve.67.041714