Ganesh, Kannan ; Kishore, Kaushal (1995) Chemical degradation of poly(styrene disulfide) and poly(styrene tetrasulfide) by triphenylphosphine Macromolecules, 28 (7). pp. 2483-2490. ISSN 0024-9297
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Official URL: http://pubs.acs.org/doi/abs/10.1021/ma00111a049
Related URL: http://dx.doi.org/10.1021/ma00111a049
Abstract
The chemical degradation of polysulfide polymers, viz., poly(styrene disulfide), PSD, and poly(styrene tetrasulfide), PST, has been achieved using triphenylphosphine, TPP. The reaction was monitored using 31P NMR spectroscopy. The solubility analysis of the reaction residues reveals that while PSD degrades completely, PST on the other hand, undergoes complete degradation only when the concentration of TPP is increased. Moreover, the reaction of PST with TPP occurs at room temperature whereas PSD requires a higher temperature. The reaction products were analyzed using the direct pyrolysis mass spectrometric (DP-MS) technique, and their formation has been explained through an ionic mechanism.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 31778 |
| Deposited On: | 19 Mar 2011 11:34 |
| Last Modified: | 19 Mar 2011 11:34 |
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