|
Authors
|
Kaya, A. ; Pompe, G. ; Schulze, U. ; Voit, B. ; Pionteck, J.
|
|
Title
|
The Effect of TIBA on Metallocene/MAO Catalyzed Synthesis of Propylene Oxazoline Copolymers and Their Use in Reactive Blending
|
|
Date
|
20.09.2002
|
|
Number
|
10018
|
|
Abstract
|
Oxazoline-functionalized polypropylenes were synthesized by using the <I>rac</I>-Et[1-Ind]<SUB>2</SUB>ZrCl<SUB>2</SUB>/MAO catalyst system. The used comonomers were 2-(9-decene-1-yl)-1,3-oxazoline (R-Ox1), 2-(9-decene-1-yl)-4,4-dimethyl-1,3-oxazoline (R-Ox2), and 2-(4-(10-undecene-1-oxy)phenyl)-1,3-oxazoline (R-Ox3). The oxazolines reduce the catalyst activity in the order R-Ox3 > R-Ox1 > R-Ox2. By the addition of triisobutylaluminum (TIBA), the catalyst poisoning is reduced and is most pronounced in the R-Ox1- and R-Ox2-containing systems. The oxazoline-containing copolymers were melt blended with carboxylic acid end-functionalized polystyrene (PS-COOH) at 200°C. Strong changes in the morphology of the reactive blends compared to the nonreactive blends, especially the cocontinuous morphology in a poly(propylene-<I>co</I>-R-Ox3)/PS-COOH blend, indicate the usefulness of the modified copolymers in the reactive blending processes. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2174-2181, 2002
|
|
Publisher
|
Journal of Applied Polymer Science
|
|
Wikidata
|
|
|
Citation
|
Journal of Applied Polymer Science 86 (2002) 2174-2181
|
|
DOI
|
https://doi.org/10.1002/app.11161
|
|
Tags
|
oxazoline metallocene catalysts functionalization of polymers propylene copolymer reactive processing pendant cyclic iminoethers polar vinyl comonomers metallocene/methylaluminoxane catalyst functionalized olefins polymerization polyethylenes complexes po
|
