Highly stiff yet elastic microcapsules incorporating cellulose nanofibrils.

Kaufman, G; Mukhopadhyay, S; Rokhlenko, Y; Nejati, S; Boltyanskiy, R; Choo, Y; Loewenberg, M; Osuji, CO

Highly stiff yet elastic microcapsules incorporating cellulose nanofibrils.

Kaufman, G Mukhopadhyay, S Rokhlenko, Y Nejati, S Boltyanskiy, R Choo, Y

Loewenberg, M Osuji, CO

Permalink

Publisher:: Royal Society of Chemistry
Publication Type:: Journal Article
Citation:: Soft Matter, 2017, 13, (15), pp. 2733-2737
Issue Date:: 2017-04-12

Closed Access

	Filename	Description	Size
	c7sm00092h.pdf		3.05 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Kaufman, G
dc.contributor.author	Mukhopadhyay, S
dc.contributor.author	Rokhlenko, Y
dc.contributor.author	Nejati, S
dc.contributor.author	Boltyanskiy, R
dc.contributor.author	Choo, Y https://orcid.org/0000-0003-2715-0618
dc.contributor.author	Loewenberg, M
dc.contributor.author	Osuji, CO
dc.date.accessioned	2022-09-02T05:08:05Z
dc.date.available	2022-09-02T05:08:05Z
dc.date.issued	2017-04-12
dc.identifier.citation	Soft Matter, 2017, 13, (15), pp. 2733-2737
dc.identifier.issn	1744-683X
dc.identifier.issn	1744-6848
dc.identifier.uri	http://hdl.handle.net/10453/161218
dc.description.abstract	Microcapsules with high mechanical stability and elasticity are desirable in a variety of contexts. We report a single-step method to fabricate such microcapsules by microfluidic interfacial complexation between high stiffness cellulose nanofibrils (CNF) and an oil-soluble cationic random copolymer. Single-capsule compression measurements reveal an elastic modulus of 53 MPa for the CNF-based capsule shell with complete recovery of deformation from strains as large as 19%. We demonstrate the ability to manipulate the shell modulus by the use of polyacrylic acid (PAA) as a binder material, and observe a direct relationship between the shell modulus and the PAA concentration, with moduli as large as 0.5 GPa attained. These results demonstrate that CNF incorporation provides a facile route for producing strong yet flexible microcapsule shells.
dc.format	Print
dc.language	eng
dc.publisher	Royal Society of Chemistry
dc.relation.ispartof	Soft Matter
dc.relation.isbasedon	10.1039/c7sm00092h
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Physics
dc.title	Highly stiff yet elastic microcapsules incorporating cellulose nanofibrils.
dc.type	Journal Article
utslib.citation.volume	13
utslib.location.activity	England
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-09-02T05:08:02Z
pubs.issue	15
pubs.publication-status	Published
pubs.volume	13
utslib.citation.issue	15

Abstract:

Microcapsules with high mechanical stability and elasticity are desirable in a variety of contexts. We report a single-step method to fabricate such microcapsules by microfluidic interfacial complexation between high stiffness cellulose nanofibrils (CNF) and an oil-soluble cationic random copolymer. Single-capsule compression measurements reveal an elastic modulus of 53 MPa for the CNF-based capsule shell with complete recovery of deformation from strains as large as 19%. We demonstrate the ability to manipulate the shell modulus by the use of polyacrylic acid (PAA) as a binder material, and observe a direct relationship between the shell modulus and the PAA concentration, with moduli as large as 0.5 GPa attained. These results demonstrate that CNF incorporation provides a facile route for producing strong yet flexible microcapsule shells.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/161218