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Abstract
ABSTRACT: The effect of adding diethyl zinc as a chain transfer agent during the polymerization of propylene in heptane performed at 80 °C was studied. Although it was expected that the chain transfer would stop after precipitation of the polymer, the polymer molecular weight continued to increase throughout the whole of the polymerization. The presence of diethyl zinc had an additional effect that the polymerizations were devoid of reactor fouling. To unravel this phenomenon, the polymer particle morphology was studied. Under the conditions applied, surprisingly, uniform platelet-shaped polymer particles were formed. At high polymer content, these particles aggregate into microfibrillar structures consisting of nematic columnar strands of the same uniform platelets. The polymer particle morphology, as a result of controlled crystallization, is believed to play a crucial role in preventing reactor fouling.
Citations
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Authors (6)
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Rob Duchateau
-
Miloud Bouyahyi
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Joey Aarts
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Amin Syed
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Erik Delsman
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
- Copyright (2021 American Chemical Society)
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
MACROMOLECULES
no. 54,
pages 696 - 702,
ISSN: 0024-9297 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Jasińska-Walc L., Duchateau R., Bouyahyi M., Aarts J., Syed A., Delsman E.: How Chain Transfer Leads to a Uniform Polymer Particle Morphology and Prevents Reactor Fouling// MACROMOLECULES -Vol. 54,iss. 2 (2021), s.696-702
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.macromol.0c02307
- Verified by:
- Gdańsk University of Technology
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