| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5182674 | Polymer | 2013 | 8 Pages |
Abstract
A polymer phase diagram showing the thermal degradation of poly(vinyl alcohol) (PVA) is developed by using the multivariable curve resolution (MCR) technique. Observed temperature-dependent infrared spectra are resolved into inherent states corresponding to four transient polymer phases: (i) solid state (crystalline), (ii) rubber state (amorphous), (iii) molten state (fluid), and (iv) thermal degradation product (residues). In comparison with the four pairs of spectral patterns and concentration profiles obtained from MCR outputs, each mixture state reveals a true transient characteristic, and the phases of thermal degradation of PVA can be visualized.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Akifumi Uda, Shigeaki Morita, Yukihiro Ozaki,