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|Title:||Miscibility and interactions in poly(n-propyl methacrylate)/poly(vinyl alcohol) blends|
Glass transition temperature
|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.|
|Appears in Collections:||Staff Publications|
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