BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS

Here we report the synthesis of news branched polyesters derived from the trans-esterification reactions at modérate temperatures (140-190°C), either from polyglycols with different molecular weights and monomers such as germylated fatty tri-esters, or from dimethyl terephtalate and germylated fatty...

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Autores principales:	KATIR,NADIA, ANDRADE,DANIELA, DAHROUCH,MOHAMED, DÍAZ,ENZO, GATICA,NICOLAS, HOURLIER,DJAMILA, REYES,NAZMY, ZARRAGA,MIGUEL
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2016
Materias:	Polymer synthesis thermal properties branched biopolyesters fatty compounds germanium compounds
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000100008
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id	oai:scielo:S0717-97072016000100008
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spelling	oai:scielo:S0717-970720160001000082016-09-14BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDSKATIR,NADIAANDRADE,DANIELADAHROUCH,MOHAMEDDÍAZ,ENZOGATICA,NICOLASHOURLIER,DJAMILAREYES,NAZMYZARRAGA,MIGUEL Polymer synthesis thermal properties branched biopolyesters fatty compounds germanium compounds Here we report the synthesis of news branched polyesters derived from the trans-esterification reactions at modérate temperatures (140-190°C), either from polyglycols with different molecular weights and monomers such as germylated fatty tri-esters, or from dimethyl terephtalate and germylated fatty tri-alcohol.The structure of the resulting polymers was determined by elemental analysis, FTIR, and 13C CP MAS NMR, and their thermal properties by the rmogravimetry analysis and differential scanning calorimetry. 13C CP MAS NMR analysis indicates that the characteristic signals due to the methoxy groups of the germylatedfatty tri-ester and the CH2OH group of germylated fatty tri-alcohol completely disappeared. This suggests that the trans-esterification process reached a nearlycomplete conversion. All germylated branched polyesters are insoluble in classic organic solvents due to their polydimensional structure. Thermal properties of these new materials showed that they do not present any cristallinity phase, and undergo thermal decomposition above 300°C.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.61 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000100008en10.4067/S0717-97072016000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Polymer synthesis thermal properties branched biopolyesters fatty compounds germanium compounds
spellingShingle	Polymer synthesis thermal properties branched biopolyesters fatty compounds germanium compounds KATIR,NADIA ANDRADE,DANIELA DAHROUCH,MOHAMED DÍAZ,ENZO GATICA,NICOLAS HOURLIER,DJAMILA REYES,NAZMY ZARRAGA,MIGUEL BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
description	Here we report the synthesis of news branched polyesters derived from the trans-esterification reactions at modérate temperatures (140-190°C), either from polyglycols with different molecular weights and monomers such as germylated fatty tri-esters, or from dimethyl terephtalate and germylated fatty tri-alcohol.The structure of the resulting polymers was determined by elemental analysis, FTIR, and 13C CP MAS NMR, and their thermal properties by the rmogravimetry analysis and differential scanning calorimetry. 13C CP MAS NMR analysis indicates that the characteristic signals due to the methoxy groups of the germylatedfatty tri-ester and the CH2OH group of germylated fatty tri-alcohol completely disappeared. This suggests that the trans-esterification process reached a nearlycomplete conversion. All germylated branched polyesters are insoluble in classic organic solvents due to their polydimensional structure. Thermal properties of these new materials showed that they do not present any cristallinity phase, and undergo thermal decomposition above 300°C.
author	KATIR,NADIA ANDRADE,DANIELA DAHROUCH,MOHAMED DÍAZ,ENZO GATICA,NICOLAS HOURLIER,DJAMILA REYES,NAZMY ZARRAGA,MIGUEL
author_facet	KATIR,NADIA ANDRADE,DANIELA DAHROUCH,MOHAMED DÍAZ,ENZO GATICA,NICOLAS HOURLIER,DJAMILA REYES,NAZMY ZARRAGA,MIGUEL
author_sort	KATIR,NADIA
title	BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
title_short	BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
title_full	BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
title_fullStr	BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
title_full_unstemmed	BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS
title_sort	branched polyesters from germylated and fatty compounds
publisher	Sociedad Chilena de Química
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000100008
work_keys_str_mv	AT katirnadia branchedpolyestersfromgermylatedandfattycompounds AT andradedaniela branchedpolyestersfromgermylatedandfattycompounds AT dahrouchmohamed branchedpolyestersfromgermylatedandfattycompounds AT diazenzo branchedpolyestersfromgermylatedandfattycompounds AT gaticanicolas branchedpolyestersfromgermylatedandfattycompounds AT hourlierdjamila branchedpolyestersfromgermylatedandfattycompounds AT reyesnazmy branchedpolyestersfromgermylatedandfattycompounds AT zarragamiguel branchedpolyestersfromgermylatedandfattycompounds
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BRANCHED POLYESTERS FROM GERMYLATED AND FATTY COMPOUNDS

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