THERMAL STUDIES OF METAL POLY(BUTYL METHACRYLATES) .13.

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dc.contributor.authorCARDENAS, G
dc.contributor.authorSALGADO, E
dc.contributor.authorTAGLE, LH
dc.date.accessioned2024-01-10T14:22:08Z
dc.date.available2024-01-10T14:22:08Z
dc.date.issued1994
dc.description.abstractMetal poly(butyl methacrylates) polymers were obtained by radical polymerization with benzoyl peroxide. The monomer was cocondensed with the metals: Cu, Ag, Au, Pd, Zn, Cd, Ga, In, Ge, Sn, Sb and Bi. The metals were evaporated to produce atoms and with the monomer they can generate a matrix at 77 K. After the warm up process, metal-monomer colloids can be obtained. The colloids were polymerized with benzoyl peroxide at 70 degrees C for 0.5 h at 70 degrees C. Four different initiator concentrations (0.5, 1.0, 1.25 and 5.0 mol%) were used. The yields are over 50% and the viscosimetric molecular weight range from 10(4)-10(5) g/mol. The higher My are Sb, In, Ag and Ge-poly(butyl methacrylates). The thermal stabilities of these metal polymers have been studied by thermogravimetry (TG) between 25 and 550 degrees C under nitrogen flow. The decomposition temperature was obtained from the maximum of the first derivative from TG curve. The kinetic parameters of the thermal decomposition were determined by the Arrhenius equation. All these polymers degrade in a single step around 300 degrees C. The kinetic data thus obtained show the thermostabilities decrease in the order: Pd-PBMA > Au-PBMA > In-PBMA > Sn-PBMA > Ag-PBMA > Sb-PBMA > Bi-PBMA > Ge-PBMA > Zn-PBMA > Ga-PBMA > Cu-PRMA > Cd-PBMA. The thermal stability apparently is depending upon the metal incorporated in the polymer matrix. The decomposition reaction order is -0.25 or -0.5 which means that we are in the presence of a complex single decomposition reaction, The pre-exponential factor, the activation energy, the reaction order and the decomposition temperature for all the polymers have been determined.
dc.fechaingreso.objetodigital2024-05-06
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1080/00914039408029350
dc.identifier.issn0091-4037
dc.identifier.urihttps://doi.org/10.1080/00914039408029350
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79869
dc.identifier.wosidWOS:A1994QR69300007
dc.information.autorucQuímica;Tagle LH;S/I;49327
dc.issue.numero1-2
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final68
dc.pagina.inicio61
dc.publisherGORDON BREACH SCI PUBL LTD
dc.revistaINTERNATIONAL JOURNAL OF POLYMERIC MATERIALS
dc.rightsacceso restringido
dc.subjectMETAL POLYMERS
dc.subjectMONOMER COLLOIDS
dc.subjectMETAL VAPOR
dc.subjectMOLECULAR WEIGHT
dc.subjectTHERMOGRAVIMETRY
dc.subjectDECOMPOSITION TEMPERATURE
dc.subjectMOLECULAR-WEIGHTS
dc.subjectPOLYMERS
dc.subjectKINETICS
dc.subjectDEGRADATION
dc.subjectSTYRENE
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleTHERMAL STUDIES OF METAL POLY(BUTYL METHACRYLATES) .13.
dc.typeartículo
dc.volumen26
sipa.codpersvinculados49327
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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