The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate)

Autor:	Novaković Katarina, Katsikas Lynne, Popović Ivanka G.
Jazyk:	angličtina
Rok vydání:	2000
Předmět:	poly(butyl methacrylate) isomers thermal degradation mechanism depolymerisation de-esterification Chemistry QD1-999
Zdroj:	Journal of the Serbian Chemical Society, Vol 65, Iss 12, Pp 867-875 (2000)
Druh dokumentu:	article
ISSN:	0352-5139 1820-7421
DOI:	10.2298/JSC0012867N
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/92d90623243340dbb54380a4ca53d8fb Zobrazit plný text záznamu View record in DOAJ