UNIVERSI
TÄ
TS-
BIBLIOTHEK
P
ADERBORN
Anmelden
Menü
Menü
Start
Hilfe
Blog
Weitere Dienste
Neuerwerbungslisten
Fachsystematik Bücher
Erwerbungsvorschlag
Bestellung aus dem Magazin
Fernleihe
Einstellungen
Sprache
Deutsch
Deutsch
Englisch
Farbschema
Hell
Dunkel
Automatisch
Universitätsbibliothek
Katalog
Details
Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich.
mehr Informationen...
Datensatz exportieren als...
BibTeX
Tailor‐made controlled rheology polypropylenes from metallocene and Ziegler–Natta resins
Polymer engineering and science, 2019-06, Vol.59 (6), p.1114-1121
Nie, Shouliang
Tzoganakis, Costas
2019
Details
Autor(en) / Beteiligte
Nie, Shouliang
Tzoganakis, Costas
Titel
Tailor‐made controlled rheology polypropylenes from metallocene and Ziegler–Natta resins
Ist Teil von
Polymer engineering and science, 2019-06, Vol.59 (6), p.1114-1121
Ort / Verlag
Hoboken, USA: John Wiley & Sons, Inc
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
Production of controlled rheology polypropylenes (CRPPs) is practiced industrially by modifying existing commodity Ziegler–Natta resins through peroxide‐induced β‐scission reactions, resulting in materials with controlled rheological properties and accompanying narrower molecular weight distributions (MWDs). In this work, this methodology was studied using both metallocene‐based polypropylenes (mPPs) and Ziegler–Natta‐based polypropylenes (ZN‐PPs). Numerical simulations based on a previously proposed kinetic model indicated that the nature of the starting resin has a significant effect on the control of MWD polydispersity index (PDI) and weight‐average molecular weight (M¯W) of the resulting CRPP. Based on these observations, experiments were carried out to demonstrate the feasibility of producing CRPP with targeted molecular and rheological characteristics. Commercial mPP and ZN‐PP resins were selected to produce CRPP with similar M¯W or melt flow rates (MFRs) but varying PDIs. The rheological properties and MWDs of these materials were evaluated through oscillatory shear and gel permeation chromatography (GPC) measurements and their extrusion behavior was briefly studied and assessed with respect to these properties. POLYM. ENG. SCI., 59:1114–1121 2019. © 2019 Society of Plastics Engineers
Sprache
Englisch
Identifikatoren
ISSN: 0032-3888
eISSN: 1548-2634
DOI: 10.1002/pen.25089
Titel-ID: cdi_crossref_primary_10_1002_pen_25089
Format
–
Schlagworte
Cleavage
,
Computer simulation
,
Extrusion
,
Flow velocity
,
Liquid chromatography
,
Molecular weight
,
Polydispersity
,
Polymers
,
Polypropylene
,
Properties (attributes)
,
Resins
,
Rheological properties
,
Rheology
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von
bX