SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES

Poly(imide-amides) (PIAs) were obtained from aspartic and glutamic acids containing both a 1,8-naphthlimidyl side group and the diamine bis(4-aminophenyl) diphenylsilane, according to the Yamazaki method and characterized by elemental analysis, optical activity, IR and ¹H, 13C and 29Si NMR spectrosc...

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Autores principales:	TAGLE,L.H., TERRAZA,C.A., TUNDIDOR-CAMBA,A, LARA,F.A.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Materias:	poly(imide-amides) silicon-containing polymers thermal properties
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400047
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spelling	oai:scielo:S0717-970720130004000472014-09-02SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIESTAGLE,L.H.TERRAZA,C.A.TUNDIDOR-CAMBA,ALARA,F.A. poly(imide-amides) silicon-containing polymers thermal properties Poly(imide-amides) (PIAs) were obtained from aspartic and glutamic acids containing both a 1,8-naphthlimidyl side group and the diamine bis(4-aminophenyl) diphenylsilane, according to the Yamazaki method and characterized by elemental analysis, optical activity, IR and ¹H, 13C and 29Si NMR spectroscopy. PIAs were soluble at room temperature in common aprotic polar solvents (DMSO, DMAc, DMF, NMP) and in other of lower polarity but low boiling point (CHCl3, THF) after heating. The inherent viscosity values were low, which was indicative of low molecular weight species of oligomeric nature. The Tg values were relatively high considering the aliphatic nature of the diacids and the bulky side groups, which cause an impediment to the rotation. It is possible to suppose a weak hydrogen bond interaction between the NH groups of the amide and the carbonyl groups of the imide. When the Tg of both PIAs was compared, it was possible to see a decrease when the main chain was increased in one -CH2- group. PIAs were not thermostable but the TDT values were relatively high considering the aliphatic nature of the diacid moiety, being PIA-As more thermostable than PIA-Gl with a longer aliphatic chain. Both PIAs showed a similar optical behavior and high transparence at 450 nm, which can be explained by the aliphatic character of the diacid moiety.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.58 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400047en10.4067/S0717-97072013000400047
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	poly(imide-amides) silicon-containing polymers thermal properties
spellingShingle	poly(imide-amides) silicon-containing polymers thermal properties TAGLE,L.H. TERRAZA,C.A. TUNDIDOR-CAMBA,A LARA,F.A. SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
description	Poly(imide-amides) (PIAs) were obtained from aspartic and glutamic acids containing both a 1,8-naphthlimidyl side group and the diamine bis(4-aminophenyl) diphenylsilane, according to the Yamazaki method and characterized by elemental analysis, optical activity, IR and ¹H, 13C and 29Si NMR spectroscopy. PIAs were soluble at room temperature in common aprotic polar solvents (DMSO, DMAc, DMF, NMP) and in other of lower polarity but low boiling point (CHCl3, THF) after heating. The inherent viscosity values were low, which was indicative of low molecular weight species of oligomeric nature. The Tg values were relatively high considering the aliphatic nature of the diacids and the bulky side groups, which cause an impediment to the rotation. It is possible to suppose a weak hydrogen bond interaction between the NH groups of the amide and the carbonyl groups of the imide. When the Tg of both PIAs was compared, it was possible to see a decrease when the main chain was increased in one -CH2- group. PIAs were not thermostable but the TDT values were relatively high considering the aliphatic nature of the diacid moiety, being PIA-As more thermostable than PIA-Gl with a longer aliphatic chain. Both PIAs showed a similar optical behavior and high transparence at 450 nm, which can be explained by the aliphatic character of the diacid moiety.
author	TAGLE,L.H. TERRAZA,C.A. TUNDIDOR-CAMBA,A LARA,F.A.
author_facet	TAGLE,L.H. TERRAZA,C.A. TUNDIDOR-CAMBA,A LARA,F.A.
author_sort	TAGLE,L.H.
title	SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
title_short	SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
title_full	SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
title_fullStr	SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
title_full_unstemmed	SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES
title_sort	silicon-containing poly(imide-amides) derived from aliphatic diacids with naphathalimidyl side groups: synthesis and thermal studies
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400047
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SILICON-CONTAINING POLY(IMIDE-AMIDES) DERIVED FROM ALIPHATIC DIACIDS WITH NAPHATHALIMIDYL SIDE GROUPS: SYNTHESIS AND THERMAL STUDIES

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