STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES

In this work, the changes caused by a chemical modification of the properties and chemical structures of lignin are studied. Lignin from a mixture of Eucalyptus globulus and Eucalyptus nitens obtained through the kraft pulping process was used. The lignin was isolated by acid precipitation and modif...

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Autores principales:	LISPERGUER,JUSTO, NUÑEZ,CHRISTIAN, PEREZ-GUERRERO,PATRICIO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Materias:	Maleated lignin recycled polystyrene thermal properties morphology
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400005
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spelling	oai:scielo:S0717-970720130004000052014-09-02STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITESLISPERGUER,JUSTONUÑEZ,CHRISTIANPEREZ-GUERRERO,PATRICIO Maleated lignin recycled polystyrene thermal properties morphology In this work, the changes caused by a chemical modification of the properties and chemical structures of lignin are studied. Lignin from a mixture of Eucalyptus globulus and Eucalyptus nitens obtained through the kraft pulping process was used. The lignin was isolated by acid precipitation and modified by a reaction with maleic anhydride. Maleated lignin (ML) was incorporated to recycled polystyrene (rPS) at 2, 5, and 10 wt-% by a melt-blending process. Fourier transformed infrared spectroscopy (FT-IR) was used to determine the ML structure, and the morphology of rPS/ ML composites was studied by scanning electron microscopy (SEM). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to study the glass-transition temperature (Tg) and the thermal stability of rPS and rPS/ ML composites and were compared with virgin PS. The Tg values of rPS and their composites were higher than those of the virgin PS. TGA revealed that the thermal stability of rPS with 2 and 5% of ML was slightly greater than that of the virgin PS. These results suggest that postconsumer PS can be used to obtain composite materials with good thermal properties.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=S0717-97072013000400005en10.4067/S0717-97072013000400005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Maleated lignin recycled polystyrene thermal properties morphology
spellingShingle	Maleated lignin recycled polystyrene thermal properties morphology LISPERGUER,JUSTO NUÑEZ,CHRISTIAN PEREZ-GUERRERO,PATRICIO STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
description	In this work, the changes caused by a chemical modification of the properties and chemical structures of lignin are studied. Lignin from a mixture of Eucalyptus globulus and Eucalyptus nitens obtained through the kraft pulping process was used. The lignin was isolated by acid precipitation and modified by a reaction with maleic anhydride. Maleated lignin (ML) was incorporated to recycled polystyrene (rPS) at 2, 5, and 10 wt-% by a melt-blending process. Fourier transformed infrared spectroscopy (FT-IR) was used to determine the ML structure, and the morphology of rPS/ ML composites was studied by scanning electron microscopy (SEM). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to study the glass-transition temperature (Tg) and the thermal stability of rPS and rPS/ ML composites and were compared with virgin PS. The Tg values of rPS and their composites were higher than those of the virgin PS. TGA revealed that the thermal stability of rPS with 2 and 5% of ML was slightly greater than that of the virgin PS. These results suggest that postconsumer PS can be used to obtain composite materials with good thermal properties.
author	LISPERGUER,JUSTO NUÑEZ,CHRISTIAN PEREZ-GUERRERO,PATRICIO
author_facet	LISPERGUER,JUSTO NUÑEZ,CHRISTIAN PEREZ-GUERRERO,PATRICIO
author_sort	LISPERGUER,JUSTO
title	STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
title_short	STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
title_full	STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
title_fullStr	STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
title_full_unstemmed	STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES
title_sort	structure and thermal properties of maleated lignin-recycled polystyrene composites
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400005
work_keys_str_mv	AT lisperguerjusto structureandthermalpropertiesofmaleatedligninrecycledpolystyrenecomposites AT nunezchristian structureandthermalpropertiesofmaleatedligninrecycledpolystyrenecomposites AT perezguerreropatricio structureandthermalpropertiesofmaleatedligninrecycledpolystyrenecomposites
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STRUCTURE AND THERMAL PROPERTIES OF MALEATED LIGNIN-RECYCLED POLYSTYRENE COMPOSITES

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