Maleic acid-alt-styrene copolymer as compatibilizer for poly(ethylene oxide)-poly(styrene) blends

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dc.contributor.authorVillar, V
dc.contributor.authorOpazo, A
dc.contributor.authorGargallo, L
dc.contributor.authorRios, H
dc.contributor.authorRadic, D
dc.date.accessioned2024-01-10T13:14:33Z
dc.date.available2024-01-10T13:14:33Z
dc.date.issued2000
dc.description.abstractMaleic acid-alt-styrene (MAaS) copolymer with number-average molecular weight (M) over bar (n) = 2500 was used as a compatibilizer in blends of poly(ethylene oxide) (PEO) and poly(styrene) (PS). PEO with weight-average molecular weight (M) over bar (w) = 10(5) (PEO100) and two PS samples with (M) over bar (w) = 9 x 10(4) and 4 x 10(5), respectively (PS90 and PS400, respectively) were used. A depression of the melting temperature T-m of PEO in blends containing MAaS relative to pure PEO and PEO/PS blends was observed. The melting enthalpy DeltaH(m) for the PEO/PS blends containing MAaS was lower than those of pure PEO and PEO/PS blends without compatibilizer. The crystallization kinetics of PEO and the blends were studied by differential scanning calorimetry (DSC) at different crystalization temperatures T-c. Flory-Huggins interaction parameters chi (12) for the blends were estimated. Their values are in good agreement with those obtained for similar systems and suggest that the free energy of mixing DeltaG(mix) should be negative. Polarized optical microscopy shows differences in the macroscopic homogeneity of the blends containing compatibilizer that could be attributed to a compatibilization process.
dc.fechaingreso.objetodigital2024-05-09
dc.format.extent17 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1081/MB-100102484
dc.identifier.issn0022-2348
dc.identifier.urihttps://doi.org/10.1081/MB-100102484
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78418
dc.identifier.wosidWOS:000166179400012
dc.information.autorucQuímica;Gargallo L;S/I;98194
dc.information.autorucQuímica;Opazo E;S/I;73825
dc.information.autorucQuímica;Radic D;S/I;49367
dc.issue.numero5-6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final747
dc.pagina.inicio731
dc.publisherMARCEL DEKKER INC
dc.revistaJOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS
dc.rightsacceso restringido
dc.subjectLOW-DENSITY POLYETHYLENE
dc.subjectPOLY(METHYL METHACRYLATE) BLENDS
dc.subjectPOLY(VINYLIDENE FLUORIDE)
dc.subjectBLOCK COPOLYMER
dc.subjectMECHANICAL-PROPERTIES
dc.subjectPOLYMER INTERFACES
dc.subjectCRYSTALLIZATION
dc.subjectBEHAVIOR
dc.subjectPOLYPROPYLENE
dc.subjectMISCIBILITY
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleMaleic acid-alt-styrene copolymer as compatibilizer for poly(ethylene oxide)-poly(styrene) blends
dc.typeartículo
dc.volumen39
sipa.codpersvinculados98194
sipa.codpersvinculados73825
sipa.codpersvinculados49367
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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