Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/94266
DC Field | Value | |
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dc.title | Miscibility of poly(methacrylic acid)/poly(4-vinylpyridine) blends and complexes investigated by high-resolution solid-state 13C NMR | |
dc.contributor.author | Yi, J.Z. | |
dc.contributor.author | Goh, S.H. | |
dc.date.accessioned | 2014-10-16T08:34:03Z | |
dc.date.available | 2014-10-16T08:34:03Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | Yi, J.Z.,Goh, S.H. (2001). Miscibility of poly(methacrylic acid)/poly(4-vinylpyridine) blends and complexes investigated by high-resolution solid-state 13C NMR. Polymer 42 (22) : 9313-9316. ScholarBank@NUS Repository. | |
dc.identifier.issn | 00323861 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/94266 | |
dc.description.abstract | Polymer blends and complexes prepared from poly(methacrylic acid) (PMAA) and poly(4-vinylpyridine) (P4VPy) were investigated by differential scanning calorimetry (DSC) and high-resolution solid-state 13C nuclear magnetic resonance (NMR) spectroscopy. Complexes were obtained from ethanol/water (1:1) solutions, whereas blends were cast from dimethylformamide (DMF) solutions. Each of the complexes and blends showed one composition-dependent glass transition temperature (Tg), indicating that both the complexes and the blends are homogeneous on a scale of 10-30 nm. Furthermore, the Tg value of a complex is much higher than that of a blend with the same composition. Measurements of the proton spin-lattice relaxation time in the rotating frame, T1ρ(H), reveal that each of the complexes and blends has one composition-dependent T1ρ(H), indicating that both the complexes and the blends are homogeneous on a scale of 1-3 nm. However, the calculated domain sizes of the complexes and blends are almost the same. © 2001 Elsevier Science Ltd. All rights reserved. | |
dc.source | Scopus | |
dc.subject | Miscibility | |
dc.subject | Poly(4-vinylpyridine) | |
dc.subject | Poly(methacrylic acid) | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.sourcetitle | Polymer | |
dc.description.volume | 42 | |
dc.description.issue | 22 | |
dc.description.page | 9313-9316 | |
dc.description.coden | POLMA | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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