CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY

The alkaline degradation of bleached kraft celllulose from Pinus Radiata and Eucalyptus Globulus in a 30% NaOH w/w solution over the time was studied. Both types of cellulose showed at the beginning, first hour, a fast drop in their molecular weight, determined by capillar viscometry, and then the d...

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Autores principales:	TAPIA,C., SAPAG-HAGAR,J., MORALES,F., VALENZUELA,F., BASUALTO,C.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2001
Materias:	Cellulose of Pinus radiata Cellulose of Eucalyptus Globulus Alkalicellulose Alkaline cellulose degradation Cellulose accesibility
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000200009
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spelling	oai:scielo:S0366-164420010002000092008-11-04CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITYTAPIA,C.SAPAG-HAGAR,J.MORALES,F.VALENZUELA,F.BASUALTO,C. Cellulose of Pinus radiata Cellulose of Eucalyptus Globulus Alkalicellulose Alkaline cellulose degradation Cellulose accesibility The alkaline degradation of bleached kraft celllulose from Pinus Radiata and Eucalyptus Globulus in a 30% NaOH w/w solution over the time was studied. Both types of cellulose showed at the beginning, first hour, a fast drop in their molecular weight, determined by capillar viscometry, and then the decaying was more slow, reaching stabilization at the end of treatment. Besides, the degree of accesibility obtained in the cellulose at different times of treatment (1h, 8h, and 24h) was evaluated through the determination of % moisture of the alkalicellulose obtained. It was not observed any effect of the time over the degree of accesibility for both types of celluloseinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaBoletín de la Sociedad Chilena de Química v.46 n.2 20012001-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000200009en10.4067/S0366-16442001000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cellulose of Pinus radiata Cellulose of Eucalyptus Globulus Alkalicellulose Alkaline cellulose degradation Cellulose accesibility
spellingShingle	Cellulose of Pinus radiata Cellulose of Eucalyptus Globulus Alkalicellulose Alkaline cellulose degradation Cellulose accesibility TAPIA,C. SAPAG-HAGAR,J. MORALES,F. VALENZUELA,F. BASUALTO,C. CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
description	The alkaline degradation of bleached kraft celllulose from Pinus Radiata and Eucalyptus Globulus in a 30% NaOH w/w solution over the time was studied. Both types of cellulose showed at the beginning, first hour, a fast drop in their molecular weight, determined by capillar viscometry, and then the decaying was more slow, reaching stabilization at the end of treatment. Besides, the degree of accesibility obtained in the cellulose at different times of treatment (1h, 8h, and 24h) was evaluated through the determination of % moisture of the alkalicellulose obtained. It was not observed any effect of the time over the degree of accesibility for both types of cellulose
author	TAPIA,C. SAPAG-HAGAR,J. MORALES,F. VALENZUELA,F. BASUALTO,C.
author_facet	TAPIA,C. SAPAG-HAGAR,J. MORALES,F. VALENZUELA,F. BASUALTO,C.
author_sort	TAPIA,C.
title	CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
title_short	CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
title_full	CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
title_fullStr	CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
title_full_unstemmed	CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
title_sort	characterization of alkalicellulose of pinus radiata and eucalyptus globulus based on its molecular weight and degree of accesibility
publisher	Sociedad Chilena de Química
publishDate	2001
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000200009
work_keys_str_mv	AT tapiac characterizationofalkalicelluloseofpinusradiataandeucalyptusglobulusbasedonitsmolecularweightanddegreeofaccesibility AT sapaghagarj characterizationofalkalicelluloseofpinusradiataandeucalyptusglobulusbasedonitsmolecularweightanddegreeofaccesibility AT moralesf characterizationofalkalicelluloseofpinusradiataandeucalyptusglobulusbasedonitsmolecularweightanddegreeofaccesibility AT valenzuelaf characterizationofalkalicelluloseofpinusradiataandeucalyptusglobulusbasedonitsmolecularweightanddegreeofaccesibility AT basualtoc characterizationofalkalicelluloseofpinusradiataandeucalyptusglobulusbasedonitsmolecularweightanddegreeofaccesibility
_version_	1718438128225615872

CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY

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