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

Termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata)

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2000
0352-51390012867N.pdf (119.7Kb)
Authors
Novaković, Katarina
Katsikas, Lynne
Popović, Ivanka
Article (Published version)
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Abstract
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 ºC. .
Neoksidativna termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata) ispitana je praćenjem promena u polimernom ostatku. Zbog različitog broja β-vodonika u estarskom supstituentu, ova dva polimerna izomera se različito ponašaju prilikom izlaganja povišenim temperaturama. Poli(iso-butil metakrilat) degradira kvantitativno depolimerizacijom do svog monomera sa kinetičkim dužinama depropagacije istog reda veličine kao kod degradacije poli(metil metakrilata). Poli(sec-butil metakrilat) degradira kombinovanim mehanizmom degradacije: depolimerizacijom i deesterifikacijom. Deestirifikacija postaje značajna reakcija termolize na temperaturama višim od 240 ºC. .
Keywords:
poly(butyl methacrylate) / isomers / thermal degradation / mechanism / depolymerisation / de-esterification
Source:
Journal of the Serbian Chemical Society, 2000, 65, 12, 867-875
Publisher:
  • Serbian Chemical Society, Belgrade

ISSN: 0352-5139

WoS: 000166372700004

Scopus: 2-s2.0-0034559823
[ Google Scholar ]
10
9
Handle
https://hdl.handle.net/21.15107/rcub_technorep_309
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/309
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Novaković, Katarina
AU  - Katsikas, Lynne
AU  - Popović, Ivanka
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/309
AB  - 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 ºC. .
AB  - Neoksidativna termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata) ispitana je praćenjem promena u polimernom ostatku. Zbog različitog broja β-vodonika u estarskom supstituentu, ova dva polimerna izomera se različito ponašaju prilikom izlaganja povišenim temperaturama. Poli(iso-butil metakrilat) degradira kvantitativno depolimerizacijom do svog monomera sa kinetičkim dužinama depropagacije istog reda veličine kao kod degradacije poli(metil metakrilata). Poli(sec-butil metakrilat) degradira kombinovanim mehanizmom degradacije: depolimerizacijom i deesterifikacijom. Deestirifikacija postaje značajna reakcija termolize na temperaturama višim od 240 ºC. .
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate)
T1  - Termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata)
EP  - 875
IS  - 12
SP  - 867
VL  - 65
UR  - https://hdl.handle.net/21.15107/rcub_technorep_309
ER  - 
@article{
author = "Novaković, Katarina and Katsikas, Lynne and Popović, Ivanka",
year = "2000",
abstract = "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 ºC. ., Neoksidativna termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata) ispitana je praćenjem promena u polimernom ostatku. Zbog različitog broja β-vodonika u estarskom supstituentu, ova dva polimerna izomera se različito ponašaju prilikom izlaganja povišenim temperaturama. Poli(iso-butil metakrilat) degradira kvantitativno depolimerizacijom do svog monomera sa kinetičkim dužinama depropagacije istog reda veličine kao kod degradacije poli(metil metakrilata). Poli(sec-butil metakrilat) degradira kombinovanim mehanizmom degradacije: depolimerizacijom i deesterifikacijom. Deestirifikacija postaje značajna reakcija termolize na temperaturama višim od 240 ºC. .",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate), Termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata)",
pages = "875-867",
number = "12",
volume = "65",
url = "https://hdl.handle.net/21.15107/rcub_technorep_309"
}
Novaković, K., Katsikas, L.,& Popović, I.. (2000). The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate). in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 65(12), 867-875.
https://hdl.handle.net/21.15107/rcub_technorep_309
Novaković K, Katsikas L, Popović I. The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate). in Journal of the Serbian Chemical Society. 2000;65(12):867-875.
https://hdl.handle.net/21.15107/rcub_technorep_309 .
Novaković, Katarina, Katsikas, Lynne, Popović, Ivanka, "The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate)" in Journal of the Serbian Chemical Society, 65, no. 12 (2000):867-875,
https://hdl.handle.net/21.15107/rcub_technorep_309 .

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