Maiti, Pralay ; Dikshit, Asok K. ; Nandi, Arun K. (2001) Glass-transition temperature of poly (vinylidene fluoride)-poly (methyl acrylate) blends: influence of aging and chain structure Journal of Applied Polymer Science, 79 (9). pp. 1541-1548. ISSN 0021-8995
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/1097-46...
Related URL: http://dx.doi.org/10.1002/1097-4628(20010228)79:9<1541::AID-APP10>3.0.CO;2-P
Abstract
The glass-transition temperature (Tg) of the poly(vinylidene fluoride) (PVF2)-poly(methyl acrylate) (PMA) blends increase with aging time. The Tg versus log(time) plots are straight lines whose slope values depend on the head to head (H-H) defect content of PVF2 samples and on the composition of the blends. The values of polymer-polymer interaction parameters (χ) increase with an increase in the H-H defect of PVF2 for a fixed composition of the blend. Consequently, the Tg of the blend decreases with an increase in the H-H defect of the PVF2 sample. However, after aging for longer times this decrease of the Tg with H-H defects is lower than those of the unaged blends. The possible reasons are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Glass-transition Temperature; Poly(vinylidene Fluoride); Poly(methyl Acrylate); Polymer Blends;aging; Head to Head Defect |
| ID Code: | 85360 |
| Deposited On: | 02 Mar 2012 05:22 |
| Last Modified: | 02 Mar 2012 05:22 |
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