Influence of the comonomer content on the thermal and dynamic mechanical properties of metallocene ethylene/1-octene copolymers

Simanke A.G.; Galland G.B.; Freitas L.; Mauler R.S.; Da Jornada J.A.H.; Quijada, R

Keywords: catalysis, spectroscopy, crystal, polymers, thermodynamics, chromatography, polymerization, crystallization, structure, gel, copolymers, metallocene, ethylene, polyethylenes, monomer, permeation, monomers, article, raman, organic, dynamic, thermodynamic, mechanical, properties, differential, calorimetry, scanning, derivative, Octene

Abstract

Studies of ethylene/1-octene copolymers prepared by a metallocene catalyst were carried out through dynamic-mechanical experiments (DMTA), differential scanning calorimetry (DSC), Raman spectroscopy and gel permeation chromatography (GPC). The influence of comonomer content on the ethylene/1-octene properties, specially those related to the dynamic- mechanical behaviour were studied. It was observed that the intensity of the ?-transition increases as the comonomer content increases and decreases crystallinity. Studies of ethylene/1-octene copolymers prepared by a metallocene catalyst were carried out through dynamic-mechanical experiments (DMTA), differential scanning calorimetry (DSC), Raman spectroscopy and gel permeation chromatography (GPC). The influence of comonomer content on the ethylene/1-octene properties, specially those related to the dynamic-mechanical behaviour were studied. It was observed that the intensity of the ?-transition increases as the comonomer content increases and decreases crystallinity.

Más información

Título de la Revista: POLYMER
Volumen: 40
Número: 20
Editorial: ELSEVIER SCI LTD
Fecha de publicación: 1999
Página de inicio: 5489
Página final: 5495
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-0032769553&partnerID=q2rCbXpz