A novel synthesis of poly(styrene peroxide) with controlled peroxy linkages at room temperature
Metadata of CSIR Papers
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| Title |
A novel synthesis of poly(styrene peroxide) with controlled peroxy linkages at room temperature
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| Creator |
Singh, RP
Desai, SM Sivaram, S Kishore, K |
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| Subject |
Polymer Science
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| Description |
Full Paper: The present report provides an elegant technique for the oxidative polymerization of vinyl monomers at room temperature using a 5,10,15,20-tetraphenyl-21H,23H-porphine cobalt(II) pyridine complex. [CoTPP(Py)] (a reversable oxygen carrier). The content of peroxy linkages in the PSP copolymer has been substantiated using Fourier transform infrared spectroscopy (FT-IR), gel permeation chromatographic (GPC) techniques and nuclear magnetic resonance (NMR) spectroscopy. The sequence of the peroxy linkages in PSP is determined from an in-depth study of high-resolution H-1 and C-13 NMR spectra. Moreover, we have attempted to study the thermal degradation of PSP having a low concentration of peroxy linkages, using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The measured dissociation energy of PSP was found to be 211 +/- 12 kJ(.)mol(-1). The synthesis of the PSP copolymer containing active peroxy segments as demonstrated here, could help in understanding the mechanism of the generation and degradation of peroxides instinctively formed during the polymer processing.
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| Publisher |
WILEY-V C H VERLAG GMBHWEINHEIMPO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
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| Date |
2011-09-24T09:56:46Z
2011-09-24T09:56:46Z 2002 |
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| Type |
Article
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| Identifier |
MACROMOLECULAR CHEMISTRY AND PHYSICS
1022-1352 http://hdl.handle.net/123456789/24217 |
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| Language |
English
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