Fluorescent molecular probe technique for assessing the interaction between sulfonated polystyrene and poly(ethylacrylate-co-4-vinylpyridine) ionomers in tetrahydrofuran
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چکیده
منابع مشابه
Control of Ionic Interactions in Sulfonated Polystyrene Ionomers by the Use of Alkyl- Substituted Ammonium Counterions
Polystyrenes containing up to about 20 mol % sulfonic acid are reproducibly and readily prepared by the sulfonation of polystyrene at 50°C with acetyl sulfate in 1,2-dichloroethane solution. The metal salts of sulfonated polystyrene possess extremely high melt viscosities and are soluble in single solvents such as toluene and THF only at very low sulfonate levels. Such properties are the result...
متن کاملOrigin of the Difference in Order-Disorder Transition Temperature between Polystyrene-block-poly(2-vinylpyridine) and Polystyrene-block-poly(4-vinylpyridine) Copolymers
Three polystyrene-block-poly(2-vinylpyridine) (S2VP diblock) and three polystyrene-block-poly(4-vinylpyridine) (S4VP diblock) copolymers with varying molecular weights and block compositions were synthesized via anionic polymerization, and their order-disorder transition temperatures (TODTs) were determined using oscillatory shear rheometry and small-angle X-ray scattering (SAXS). It has been f...
متن کاملSolid-state NMR Analysis of Blends of Nylon 6 and Zinc Salts of Sulfonated Polystyrene Ionomers
Solid-state NMR was used to establish the specific intermolecular interactions responsible for the miscibility of blends of nylon 6 (PA6) and the zinc salt of lightly sulfonated polystyrene (Zn-SPS) and to characterize the scale of molecular mixing. l 3 C CPIMAS spectroscopy identified the interpolymer interaction as a complex between the Zn2+ cation of the ionomer and the amide nitrogen. Measu...
متن کاملPolyoxometalate-modulated self-assembly of polystyrene-block-poly(4-vinylpyridine).
Polyoxometalates can serve as active components to induce and modulate the micellization behavior of polystyrene-block-poly(4-vinylpyridine).
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this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...
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ژورنال
عنوان ژورنال: Macromolecules
سال: 1991
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma00016a015