Thermal studies of poly(esters) containing silicon or germanium in the main chain

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dc.contributor.authorTagle, LH
dc.contributor.authorTerraza, C
dc.contributor.authorValenzuela, P
dc.contributor.authorLeiva, A
dc.contributor.authorUrzúa, M
dc.date.accessioned2025-01-21T01:07:13Z
dc.date.available2025-01-21T01:07:13Z
dc.date.issued2005
dc.description.abstractThe thermal properties of poly(esters) containing Si and/or Ge in the main chain derived from the acid dichlorides bis(4-chloroformylphenyl)-dimethyl-silane, bis(4-chloroformyl-phenyl)-dimethyl-germane, bis(4-chlorofonnyt-phenyl)-diphenyl-silane and bis(4-chloroformyl-phenyl)-diphenyl-silane, and the diphenols bis(4-hydroxyphenyl)-dimethyl-silane, bis (4-hydroxyphenyl)-dimethyl-germane, bis(4hydroxyphenyl)-diphenyl-silane and bis(4-hydroxyphenyl)-diphenyl-germane were studied by differential scanning calorimetry and dynamic thermogravimetry. Poly(esters) with two Si atoms in the main chain showed higher values of Tg than those with two Ge atoms, and the same was observed for poly(esters) with phenyl groups bonded to the heteroatoms, instead of those with methyl groups. Thermal decomposition temperatures were also higher for those poly(esters) with two Si atoms in the main chain and those in which the heteroatom is bonded to phenyl groups, due to the higher polarity of the Si-C bond in front of the Ge-C. (C) 2004 Elsevier B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.tca.2004.06.008
dc.identifier.issn0040-6031
dc.identifier.urihttps://doi.org/10.1016/j.tca.2004.06.008
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96293
dc.identifier.wosidWOS:000226728800014
dc.issue.numero1-2
dc.language.isoen
dc.pagina.final119
dc.pagina.inicio115
dc.revistaThermochimica acta
dc.rightsacceso restringido
dc.subjectgermanium
dc.subjectsilicon
dc.subjectpoly(esters)
dc.subjectglass transition temperatures
dc.subjectthermal decomposition temperatures
dc.titleThermal studies of poly(esters) containing silicon or germanium in the main chain
dc.typeartículo
dc.volumen425
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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