How Chain Transfer Leads to a Uniform Polymer Particle Morphology and Prevents Reactor Fouling

Lidia Jasińska-Walc; Rob Duchateau; Miloud Bouyahyi; Joey Aarts; Amin Syed; Erik Delsman

doi:10.1021/acs.macromol.0c02307

How Chain Transfer Leads to a Uniform Polymer Particle Morphology and Prevents Reactor Fouling

Abstrakt

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.

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Autorzy (6)

Lidia Jasińska-Walc dr hab. inż.
Rob Duchateau
Miloud Bouyahyi
Joey Aarts
Amin Syed
Erik Delsman

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Wersja publikacji: Accepted albo Published Version
Licencja: Copyright (2021 American Chemical Society)

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Informacje szczegółowe

Kategoria:: Publikacja w czasopiśmie
Typ:: artykuły w czasopismach
Opublikowano w:: MACROMOLECULES nr 54, strony 696 - 702,
ISSN: 0024-9297
Język:: angielski
Rok wydania:: 2021
Opis bibliograficzny:: 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:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1021/acs.macromol.0c02307
Weryfikacja:: Politechnika Gdańska