Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



  history
ID: 56365.0, MPI für Polymerforschung / MPI Polymerforschung
Organic nanoparticles with polypropyleneoxide chains as support for metallocene catalysts: Ethylene homopolymerization and ethylene/alpha-olefin copolymerization
Authors:Jang, Y. J.; Nenov, N.; Klapper, Markus; Müllen, Klaus
Language:English
Date of Publication (YYYY-MM-DD):2003-07
Title of Journal:Polymer Bulletin
Journal Abbrev.:Polym. Bull.
Volume:50
Issue / Number:5-6
Start Page:343
End Page:350
Review Status:not specified
Audience:Not Specified
Abstract / Description:Novel organic nanoparticles functionalized with nucleophilic polypropyleneoxide (PPO) chains on their surfaces for supporting metallocene catalysts in heterogeneous olefin polymerization are presented. The nanoparticles (60-100 nm) were obtained by miniemulsion polymerization of styrene, divinylbenzene and PPO functionalized styrene. It is demonstrated that Me2Si(w2MeBenzInd)(2)ZrCl2/MAO supported on these nanoparticles is suitable for the homopolymerization of ethylene, resulting in excellent product morphologies and high activities. It is shown that by varying the MAO/Zr ratios and Zr concentrations the activities and productivities of the catalysts as well as the qualities of the polyethylene products can be tuned. These new supported catalysts are also suitable for the copolymerization of ethylene with several comonomers (1-hexene, 1-octene, 1-decene or norbornene). As the obtained product properties like crystallinity, melting temperature or bulk density match the results of silica supported systems, these organic nanoparticles can be considered as alternative carriers in comparison to the established inorganic ones.
Comment of the Author/Creator:Date: 2003, JUL
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
Identifiers:ISI:000184686600007 [ID No:1]
ISSN:0170-0839 [ID No:2]
LOCALID:P-03-224
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.