Premium
Condensed Mode Cooling for Ethylene Polymerization: Part VI. Impact of Induced Condensing Agents on Comonomer Incorporation and Polymer Properties
Author(s) -
Ishola Niyi B.,
Andrade Fabia.,
Machado Fabricio,
McKenna Timothy F.L.
Publication year - 2020
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.202000021
Subject(s) - comonomer , polyethylene , polymerization , crystallinity , ethylene , melt flow index , materials science , polymer chemistry , polymer , chemical engineering , chemistry , catalysis , composite material , organic chemistry , copolymer , engineering
Gas phase copolymerizations of ethylene and an α‐olefin comonomer are performed using a commercial Ziegler–Natta catalyst in the presence of different induced condensing agents (ICA). The impact of these factors on the yield and final polyethylene properties such as the melt flow index, crystallinity, and incorporation of comonomer is studied. It has been shown that the increase in the rate of polymerization is even more pronounced in the presence of ICA. It also appears that adding ICA to the copolymerizations changes the comonomer incorporation with respect to similar copolymerizations performed without ICA due to competing cosolubility effects.