Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Sebastien Viale"'
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 45:666-676
Two partially sulfonated copolymers of poly(p-phenylene terephthalamide) were studied; the sulfonated diamine to nonsulfonated diamine ratios were x = 1 and x = 2. Polymer solutions in water demonstrated lyotropic liquid-crystalline behavior, with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c5d7afd9940ec8fc1fdf6f5cee045c3
https://doi.org/10.1002/polb.21082
https://doi.org/10.1002/polb.21082
Publikováno v:
Macromolecules. 38:3647-3652
The formation of lyotropic solutions in water has yet to be reported for polyaramides. In this work, we investigate the synthesis and properties of a water-soluble polyaramid via the inclusion of a sulfonated monomer in the backbone of the polymer ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a443732708c083d65c82284b1db2454a
https://doi.org/10.1021/ma0475636
https://doi.org/10.1021/ma0475636
Publikováno v:
Molecular Crystals and Liquid Crystals. 411:525-535
In this paper, we report the effect of shear and relaxation on low concentration solutions of a synthetic water-soluble rigid rod polymer in deuterated water using small angle neutron scattering (SANS). The polymer used is sulfo poly p-phenyleneterep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea856abdd9a7bdd3459f37f1c50ecee6
https://doi.org/10.1080/15421400490436449
https://doi.org/10.1080/15421400490436449
Publikováno v:
Polymer. 44:7843-7850
Water-soluble polyaramides have been prepared from 2,5-diaminobenzene-sulphonic-acid activated by TMSCl and terephthalic-acid-chloride. Using this method, we achieved molecular weights of our polymers up to 18,000 g mol−1. Two model compounds were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9f1c847f6404c23bc82e8162d70d559
https://doi.org/10.1016/j.polymer.2003.10.016
https://doi.org/10.1016/j.polymer.2003.10.016
Publikováno v:
Chemical communications (Cambridge, England). (14)
A water-soluble polyaramide "sulfo-invert-PPTA" surprisingly, already at a molecular weight of 10,000 g mol(-1), exhibits a nematic liquid crystalline phase in water at very low polymer concentrations, around 1-2wt%, indicating that supramolecular as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f67ddf8e1c98ec0ce8921789ebc6b794
https://pubmed.ncbi.nlm.nih.gov/15263935
https://pubmed.ncbi.nlm.nih.gov/15263935
Publikováno v:
Journal of applied crystallography 36, 1000-1005 (2003). doi:10.1107/S0021889803013761
Solutions of a rigid polyelectrolyte molecule, sulfo-poly(phenyleneterephthalamide) (SPTTA), in deuterated water have been investigated using small-angle neutron scattering. At low concentrations (1 wt%) the scattering spectrum presents a soft maximu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::400d338e08e1886aa138e46ea4a7698f
https://hdl.handle.net/2128/2855
https://hdl.handle.net/2128/2855
Publikováno v:
Molecular Crystals and Liquid Crystals. 437:43/[1287]-52/[1296]
Sulfonated polyaramide poly(p-phenylene-sulfo-terephthalamide), or “Sulfo Invert PPTA”, self-assembles in water to form rod-shaped supramolecular aggregates that exhibit nematic liquid crystalline behaviour at remarkably low polymer concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f1e457883357dd4609cf4dc5f5bfcb2
https://doi.org/10.1080/15421400590954812
https://doi.org/10.1080/15421400590954812
Publikováno v:
Chemical Communications. :1528
We report strong experimental evidence on the formation of a molecular lyotropic phase in water of a modified polyaramide, namely a fully sulfonated poly(p-phenylene terephthalamide) (Sulfo2PPTA) that exhibits similar liquid crystalline behaviour in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60d191d70159769f8f0d25e48f0ca554
https://doi.org/10.1039/b416723f
https://doi.org/10.1039/b416723f
Publikováno v:
Journal of Polymer Science. Part B, Polymer Physics; Mar2007, Vol. 45 Issue 6, p666-676, 11p
Publikováno v:
Chemical Communications; Jul2004, Vol. 2004 Issue 14, p1596-1597, 2p