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https://doi.org/10.1016/j.polymer.2005.07.011
| Title: | Miscibility and interactions in poly(n-propyl methacrylate)/poly(vinyl alcohol) blends | Authors: | Yi, J.Z. Goh, S.H. |
Keywords: | Blends Glass transition temperature Miscibility |
Issue Date: | 7-Oct-2005 | Citation: | Yi, J.Z., Goh, S.H. (2005-10-07). Miscibility and interactions in poly(n-propyl methacrylate)/poly(vinyl alcohol) blends. Polymer 46 (21) : 9170-9175. ScholarBank@NUS Repository. https://doi.org/10.1016/j.polymer.2005.07.011 | Abstract: | Poly(n-propyl methacrylate) (PPMA) is miscible with poly(vinyl alcohol) (PVA) over the whole composition range as shown by the existence of a single glass transition temperature in each blend. The interaction between PPMA and PVA was examined by Fourier transform infrared spectroscopy and solid-state nuclear magnetic resonance spectroscopy. The interactions mainly involve the hydroxyl groups of PVA and the carbonyl groups of PPMA. The measurements of proton spin-lattice relaxation time reveal that PPMA and PVA do not mix intimately on a scale of 1-3 nm, but are miscible on a scale of 20-30 nm. A small negative interaction parameter value has been obtained by melting point depression measurement. © 2005 Elsevier Ltd. All rights reserved. | Source Title: | Polymer | URI: | http://scholarbank.nus.edu.sg/handle/10635/76522 | ISSN: | 00323861 | DOI: | 10.1016/j.polymer.2005.07.011 |
| Appears in Collections: | Staff Publications |
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