Phase diagram for polystyrene/poly(vinylmethyl ether) blends by 13C-NMR |
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| Authors: | C W Chu L C Dickinson James C W Chien |
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| Affiliation: | (1) Department of Polymer Science and Engineering, Department of Chemistry, University of Massachusetts, 01003 Amherst, MA, USA |
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| Abstract: | Summary The composition of each phase separated domain, thus the phase diagram, has been determined by 13C NMR methods for thermally phase separated polystyrene (PS)/poly(vinylmethyl ether) (PVME) blends. Even in compatible PS/PVME blend T
1
H
at –5°C, determined indirectly via 13C intensities show microheterogeneity at an estimated 20 Å level if the PVME content is greater than 50%. |
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