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ID 51057
creator
Yoshino, Yuki
Hayashi, Souta
subject
Poly(ethylene-co-acrylic acid) (PEAA)
Carbon dioxide
Solubility
Sanchez−Lacombe equation of state
Diffusion coefficient
Free volume theory
abstract
We measured and modeled the solubilities and diffusion coefficients of carbon dioxide (CO2) in poly(ethylene-co-acrylic acid) (PEAA) over temperatures of 373–473 K and pressures of up to 20 MPa. The measured solubilities of CO2 in PEAA obeyed Henry’s law and decreased with an increase in the acrylic acid content of the copolymer. The Sanchez-Lacombe equation of state could be applied to correlate the measured solubilities. The temperature dependence of the CO2 solubilities in PEAA was found to be similar to that in polyethylene with analysis using Henry’s law. Further, the gas solubility and acrylic acid content were the influential factors for determining the diffusivity of CO2, which could be modeled based on the free volume theory.
journal title
The Journal of Supercritical Fluids
volume
Volume 158
start page
104733
date of issued
2020-04-01
publisher
Elsevier
issn
0896-8446
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
relation url
department
Graduate School of Advanced Science and Engineering
note
The full-text file will be made open to the public on 1 April 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'