Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

Rinat Nigmatullin; Robert Harniman; Valeria Gabrielli; Juan C. Muñoz-García; Yaroslav Z. Khimyak; Jesús Angulo; Stephen J. Eichhorn

doi:10.1021/acsami.8b05067

Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

Rinat Nigmatullin^*, Robert Harniman, Valeria Gabrielli, Juan C. Muñoz-García, Yaroslav Z. Khimyak, Jesús Angulo, Stephen J. Eichhorn

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

29 Citations (Scopus)

321 Downloads (Pure)

Abstract

Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.

Original language	English
Pages (from-to)	19318-19322
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	23
Early online date	23 May 2018
DOIs	https://doi.org/10.1021/acsami.8b05067
Publication status	Published - 13 Jun 2018

Keywords

adhesive force
cellulose nanocrystals (CNCs)
gels
rheology
starch

Access to Document

10.1021/acsami.8b05067

Full-text PDF (accepted author manuscript)
This is the author accepted manuscript (AAM). The final published version (version of record) is available online via ACS at https://pubs.acs.org/doi/full/10.1021/acsami.8b05067 . Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 503 KBLicence: CC BY
Supplementary information PDF
This is the author accepted manuscript (AAM). The final published version (version of record) is available online via ACS at https://pubs.acs.org/doi/full/10.1021/acsami.8b05067 . Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 613 KBLicence: CC BY

Handle.net

Persistent link

Cite this

@article{d7614526060446ca924def9d7bc94611,

title = "Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals",

abstract = "Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.",

keywords = "adhesive force, cellulose nanocrystals (CNCs), gels, rheology, starch",

author = "Rinat Nigmatullin and Robert Harniman and Valeria Gabrielli and Mu{\~n}oz-Garc{\'i}a, {Juan C.} and Khimyak, {Yaroslav Z.} and Jes{\'u}s Angulo and Eichhorn, {Stephen J.}",

year = "2018",

month = jun,

day = "13",

doi = "10.1021/acsami.8b05067",

language = "English",

volume = "10",

pages = "19318--19322",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "23",

}

TY - JOUR

T1 - Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

AU - Nigmatullin, Rinat

AU - Harniman, Robert

AU - Gabrielli, Valeria

AU - Muñoz-García, Juan C.

AU - Khimyak, Yaroslav Z.

AU - Angulo, Jesús

AU - Eichhorn, Stephen J.

PY - 2018/6/13

Y1 - 2018/6/13

N2 - Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.

AB - Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.

KW - adhesive force

KW - cellulose nanocrystals (CNCs)

KW - gels

KW - rheology

KW - starch

UR - http://www.scopus.com/inward/record.url?scp=85047616274&partnerID=8YFLogxK

U2 - 10.1021/acsami.8b05067

DO - 10.1021/acsami.8b05067

M3 - Article (Academic Journal)

C2 - 29790733

SN - 1944-8244

VL - 10

SP - 19318

EP - 19322

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 23

ER -

Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

Abstract

Keywords

Access to Document

Handle.net

Other files and links

Fingerprint

New Enzymatically Produced Interpenetrating Starch-Cellulose Gells

Cite this

Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

Abstract

Keywords

Access to Document

Handle.net

Other files and links

Fingerprint

Projects

New Enzymatically Produced Interpenetrating Starch-Cellulose Gells

Cite this