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 ?-hydrogens in their ester substituents, these two polymeric isomers behave differently when subjected to...

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Bibliographic Details
Published inJournal of the Serbian Chemical Society Vol. 65; no. 12; pp. 867 - 875
Main Authors Novakovic, Katarina, Katsikas, Lynne, Popovic, Ivanka
Format Journal Article
LanguageEnglish
Published Serbian Chemical Society 2000
Subjects
de-esterification
depolymerisation
isomers
mechanism
poly(butyl methacrylate)
thermal degradation
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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 ?-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. nema
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC0012867N