Zobrazeno 1 - 10
of 283
pro vyhledávání: '"Heino Finkelmann"'
Autor:
Yusril Yusuf, Shohei Yamaguchi, Shinya Kawano, Hirotaka Okabe, Simon Krause, Heino Finkelmann, P. E. Cladis, Shoichi Kai
Publikováno v:
Advances in Condensed Matter Physics, Vol 2013 (2013)
Nematic networks with three different concentrations of polar and nonpolar mesogens and the same concentration of a novel cross-linking agent give rise to unusual liquid single crystal elastomers (LSCEs) that are transparent monodomain nematic networ
Externí odkaz:
https://doaj.org/article/9a1fa40f42c447df9133b0c006d85b19
Publikováno v:
Soft Matter. 9:1674-1677
Ever since the first theoretical phase diagram that was published by Straley in 1974, extensive theoretical efforts have been made on predicting the molecular shape and properties of mesogens that can form a biaxial-nematic phase. The theories sugges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c29f6aed52fe5c87abc3868030e571
https://doi.org/10.1039/c2sm27293h
https://doi.org/10.1039/c2sm27293h
Publikováno v:
Macromolecular Rapid Communications. 34:135-141
We present studies on bulk smectic-A copolymer networks with end-on attached homeotropically oriented mesogens that show spontaneous optical biaxiality at room temperature. Orthoscopic and conoscopic investigations under uniaxial extension in the lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38e9ced5f983774255ecc228facd6c37
https://doi.org/10.1002/marc.201200588
https://doi.org/10.1002/marc.201200588
Publikováno v:
Molecular Crystals and Liquid Crystals. 553:193-198
A high-resolution calorimetric study has been performed in the vicinity of the isotropic to smectic-A phase transition of smectic liquid crystalline elastomers. The transition is weakly first order for both investigated samples. Nevertheless, differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::579788538a629af651c2ca9f0f4b2474
https://doi.org/10.1080/15421406.2011.609470
https://doi.org/10.1080/15421406.2011.609470
Publikováno v:
Macromolecular Chemistry and Physics. 212:2667-2673
The shear mechanical properties of nematic side-chain liquid-crystal elastomers swollen with a nematic solvent are studied. The results show that the elasticity of the network is Gaussian for elastomers oriented before crosslinking and non-Gaussian f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f0f63e6ac7e351abf5ccd5cdcad981c
https://doi.org/10.1002/macp.201100426
https://doi.org/10.1002/macp.201100426
Autor:
Heino Finkelmann, Dominic Kramer
Publikováno v:
Macromolecular Rapid Communications. 32:1539-1545
Smectic-A elastomers combine one-dimensional translational order of rod-like segments with the rubber elasticity of a polymer network. In recent years, detailed investigations were carried out on elastomers showing a global prolate chain conformation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d8e07f30bdd47c2dfb7b8e111efa614
https://doi.org/10.1002/marc.201100259
https://doi.org/10.1002/marc.201100259
Publikováno v:
Macromolecular Rapid Communications. 32:671-678
The mechanical behaviour of monodomain nematic side-chain liquid-crystalline elastomers containing azoderivatives as pendant groups or crosslinkers has been studied under UV irradiation and in the darkness at different temperatures. From the evaluati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aab3f6d184aa4754729fce10f6e952f7
https://doi.org/10.1002/marc.201100005
https://doi.org/10.1002/marc.201100005
Autor:
Heino Finkelmann, Dominic Kramer
Publikováno v:
Soft Matter. 7:1861-1867
Recently it has been predicted that shear forces can unlock the director and the layer normal in smectic-A elastomers, leading to a smectic-C like tilt analogous to the electroclinic effect of chiral SA* phases. In order to investigate this phenomeno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5fae2e7d5888ba8701838522f297227
https://doi.org/10.1039/c0sm01064b
https://doi.org/10.1039/c0sm01064b
Publikováno v:
J. Mater. Chem.. 21:1094-1101
Nematic liquid single crystal elastomers (LSCEs) that contain azobenzenes as cross-linkers have a clear application in the field of light-controlled actuators. They are able to modify their macroscopic dimensions upon irradiation with UV light and fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31a1e5913814f1ecbd7196d8b9864372
https://doi.org/10.1039/c0jm02502j
https://doi.org/10.1039/c0jm02502j
Publikováno v:
Macromolecular Rapid Communications. 32:309-315
The polydomain–monodomain (PM) transformation takes place when a polydomain of a smectic-C main-chain liquid-crystalline elastomer (SmC MCLCE) is uniaxially stretched. We present results based on a combination of mechanical and X-ray experiments wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb4635c2344b025a1e468a6283b889d4
https://doi.org/10.1002/marc.201000590
https://doi.org/10.1002/marc.201000590