Polymer-Grafted Porous Silica Nanoparticles with Enhanced CO2Permeability and Mechanical Performance

Zongyu Wang; Hao Chen; Yangyang Wang; Jihua Chen; Mark A. Arnould; Bin Hu; Ilja Popovs; Shannon M. Mahurin; Sheng Dai

doi:10.1021/acsami.1c04342

Polymer-Grafted Porous Silica Nanoparticles with Enhanced CO₂Permeability and Mechanical Performance

Zongyu Wang, Hao Chen, Yangyang Wang, Jihua Chen, Mark A. Arnould, Bin Hu, Ilja Popovs, Shannon M. Mahurin, Sheng Dai

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Three different types of polymer ligands, poly(methyl methacrylate) (PMMA), poly(methyl methacrylate-random-poly(ethylene glycol)methyl ether methacrylate) (PMMA-r-PEGMEMA), and poly(ionic liquid)s (PIL), were grafted onto the surface of 15 nm solid and large hollow porous silica nanoparticles (average particle size ∼60 nm) by surface-initiated atom transfer radical polymerization (SI-ATRP) to demonstrate the enhanced carbon dioxide (CO2) permeability as well as mechanical properties. After characterizing the purified products, free-standing bulk films were fabricated by the solvent-casting method. The poly(ionic liquid) nanocomposite films exhibited a much higher carbon dioxide permeance than PMMA and PMMA-r-PEGMEMA systems with a similar silica content. Also, the hollow silica-mixed matrix membranes showed a significant enhancement in CO2 permeability compared to the 15 nm solid silica films because of the pore structure. Despite the transparency loss due to the scattering of larger particle sizes, the hollow silica particle brush films exhibited the same mechanical properties as the 15 nm solid silica-derived ones.

Original language	English
Pages (from-to)	27411-27418
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	13
Issue number	23
DOIs	https://doi.org/10.1021/acsami.1c04342
State	Published - Jun 16 2021

Funding

This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division. Part of this work was conducted at the Center for Nanophase Materials Sciences (CNMS), which is sponsored at the Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy, managed by UT-Battelle, LLC, for the United States.

Funders	Funder number
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Chemical Sciences, Geosciences, and Biosciences Division

Keywords

atom transfer radical polymerization
gas separation
mechanical property
particle brush
poly(ionic liquid)s
porous silica

Access to Document

10.1021/acsami.1c04342

Cite this

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title = "Polymer-Grafted Porous Silica Nanoparticles with Enhanced CO2Permeability and Mechanical Performance",

abstract = "Three different types of polymer ligands, poly(methyl methacrylate) (PMMA), poly(methyl methacrylate-random-poly(ethylene glycol)methyl ether methacrylate) (PMMA-r-PEGMEMA), and poly(ionic liquid)s (PIL), were grafted onto the surface of 15 nm solid and large hollow porous silica nanoparticles (average particle size ∼60 nm) by surface-initiated atom transfer radical polymerization (SI-ATRP) to demonstrate the enhanced carbon dioxide (CO2) permeability as well as mechanical properties. After characterizing the purified products, free-standing bulk films were fabricated by the solvent-casting method. The poly(ionic liquid) nanocomposite films exhibited a much higher carbon dioxide permeance than PMMA and PMMA-r-PEGMEMA systems with a similar silica content. Also, the hollow silica-mixed matrix membranes showed a significant enhancement in CO2 permeability compared to the 15 nm solid silica films because of the pore structure. Despite the transparency loss due to the scattering of larger particle sizes, the hollow silica particle brush films exhibited the same mechanical properties as the 15 nm solid silica-derived ones.",

keywords = "atom transfer radical polymerization, gas separation, mechanical property, particle brush, poly(ionic liquid)s, porous silica",

author = "Zongyu Wang and Hao Chen and Yangyang Wang and Jihua Chen and Arnould, {Mark A.} and Bin Hu and Ilja Popovs and Mahurin, {Shannon M.} and Sheng Dai",

note = "Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

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AU - Wang, Yangyang

AU - Chen, Jihua

AU - Arnould, Mark A.

AU - Hu, Bin

AU - Popovs, Ilja

AU - Mahurin, Shannon M.

AU - Dai, Sheng

PY - 2021/6/16

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N2 - Three different types of polymer ligands, poly(methyl methacrylate) (PMMA), poly(methyl methacrylate-random-poly(ethylene glycol)methyl ether methacrylate) (PMMA-r-PEGMEMA), and poly(ionic liquid)s (PIL), were grafted onto the surface of 15 nm solid and large hollow porous silica nanoparticles (average particle size ∼60 nm) by surface-initiated atom transfer radical polymerization (SI-ATRP) to demonstrate the enhanced carbon dioxide (CO2) permeability as well as mechanical properties. After characterizing the purified products, free-standing bulk films were fabricated by the solvent-casting method. The poly(ionic liquid) nanocomposite films exhibited a much higher carbon dioxide permeance than PMMA and PMMA-r-PEGMEMA systems with a similar silica content. Also, the hollow silica-mixed matrix membranes showed a significant enhancement in CO2 permeability compared to the 15 nm solid silica films because of the pore structure. Despite the transparency loss due to the scattering of larger particle sizes, the hollow silica particle brush films exhibited the same mechanical properties as the 15 nm solid silica-derived ones.

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