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BibTeX
Blends of ethylene 1-octene copolymer synthesized by Ziegler-Natta and metallocene catalysts. I. Thermal and mechanical properties
Journal of applied polymer science, 1999-10, Vol.74 (5), p.1169-1177
Rana, Dipak
Cho, Kyucheol
Woo, Taewoo
Lee, Byung H.
Choe, Soonja
1999
Details
Autor(en) / Beteiligte
Rana, Dipak
Cho, Kyucheol
Woo, Taewoo
Lee, Byung H.
Choe, Soonja
Titel
Blends of ethylene 1-octene copolymer synthesized by Ziegler-Natta and metallocene catalysts. I. Thermal and mechanical properties
Ist Teil von
Journal of applied polymer science, 1999-10, Vol.74 (5), p.1169-1177
Ort / Verlag
New York: John Wiley & Sons, Inc
Erscheinungsjahr
1999
Link zum Volltext
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
The thermal, viscoelastic, and mechanical behaviors of three binary blends of ethylene 1‐octene copolymer (EOC) regarding the melt index and density, one component made by Ziegler–Natta (FA and RF in abbreviation of the commercial name) and the other by metallocene catalysts (FM, EN and PL in abbreviation of the commercial name), have been investigated to understand molecular mechanism of the blends. Thermal studies reveal that the two constituents in the three blends exclude one another during crystallization, implying a phase separation. Viscoelastic properties show a single β or γ transition in all the compositions, suggesting a miscibility in the amorphous region. The tensile modulus, yield stress, maximum strength at break, and elongation at break follow the rule of mixtures if the comonomer content does not differ too much. Otherwise, the modulus and yield stress are negatively deviated, whereas elongation at break is positively deviated from the weight‐average value. The tensile properties of film at yield and break in the machine direction is increased with an addition of FM in the FA + FM blend. Although all three blends form separate crystals in the crystalline state, a correlation exists between the mechanical properties and the density of EOCs. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 1169–1177, 1999
Sprache
Englisch
Identifikatoren
ISSN: 0021-8995
eISSN: 1097-4628
DOI: 10.1002/(SICI)1097-4628(19991031)74:5<1169::AID-APP13>3.0.CO;2-W
Titel-ID: cdi_crossref_primary_10_1002__SICI_1097_4628_19991031_74_5_1169__AID_APP13_3_0_CO_2_W
Format
–
Schlagworte
Applied sciences
,
ethylene 1-octene copolymers
,
Exact sciences and technology
,
Mechanical properties
,
Organic polymers
,
Physicochemistry of polymers
,
Properties and characterization
,
Ziegler-Natta and metallocene catalysts
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