The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate)
The non-oxidative thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) was investigated by studying changes in the polymer residue. Due to the different number of β-hydrogens in their ester substituents, these two polymeric isomers behave differently when sub...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2000-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390012867N.pdf |
| Summary: | The non-oxidative thermal degradation of poly(iso-butyl methacrylate) and
poly(sec-butyl methacrylate) was investigated by studying changes in the
polymer residue. Due to the different number of β-hydrogens in their ester
substituents, these two polymeric isomers behave differently when subjected
to elevated temperatures. Poly(iso-butyl methacrylate) degrades
quantitatively by depolymerisation with zip lengths of the same order of
magnitude as those of poly(methyl methacrylate). Poly(sec-butyl
methacrylate) degrades by a combined degradation mechanism of
depolymerisation and de-esterification. De-esterification becomes a
significant thermolysis route at temperatures higher than 240°C. |
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| ISSN: | 0352-5139 1820-7421 |