Crosslinking hydroxylated reduced graphene oxide with RAFT-CTA: A nano-initiator for preparation of well-defined amino acid-based polymer nanohybrids

Mina Namvari; Chandra S. Biswas; Qiao Wang; Wenlang Liang; Florian J. Stadler

doi:10.1016/j.jcis.2017.06.007

Crosslinking hydroxylated reduced graphene oxide with RAFT-CTA: A nano-initiator for preparation of well-defined amino acid-based polymer nanohybrids

Mina Namvari
, Chandra S. Biswas
, Qiao Wang
, Wenlang Liang
, Florian J. Stadler^*

^*Corresponding author for this work

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

27 Scopus citations

Abstract

Here, we demonstrate a novel reversible addition-fragmentation chain transfer agent (RAFT-CTA)-modified reduced graphene oxide nanosheets (CTA-rGONSs) by crosslinking rGONSs with a RAFT-CTA via esterification reaction. These nano CTA-rGONSs were used to polymerize a hydrophobic amino acid-based methacrylamide (N-acryloyl-L-phenylalanine methyl ester) monomer with different monomer/initiator ratios. Thermogravimetric analysis showed that the polymer-graphene composites were thermally more stable than GO itself. M_n of the polymers increased with increasing monomer/initiator ratio, while the polydispersity index decreased, indicating controlled polymerization. The composites were stable in DMF even after two months.

Original language	English
Pages (from-to)	731-740
Number of pages	10
Journal	Journal of Colloid and Interface Science
Volume	504
DOIs	https://doi.org/10.1016/j.jcis.2017.06.007
State	Published - 15 Oct 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Inc.

Keywords

Crosslinked reduced graphene
Organic-soluble network
Polymer-graphene composite
Reversible Addition Fragmentation Chain Transfer (RAFT)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1016/j.jcis.2017.06.007

Cite this

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title = "Crosslinking hydroxylated reduced graphene oxide with RAFT-CTA: A nano-initiator for preparation of well-defined amino acid-based polymer nanohybrids",

abstract = "Here, we demonstrate a novel reversible addition-fragmentation chain transfer agent (RAFT-CTA)-modified reduced graphene oxide nanosheets (CTA-rGONSs) by crosslinking rGONSs with a RAFT-CTA via esterification reaction. These nano CTA-rGONSs were used to polymerize a hydrophobic amino acid-based methacrylamide (N-acryloyl-L-phenylalanine methyl ester) monomer with different monomer/initiator ratios. Thermogravimetric analysis showed that the polymer-graphene composites were thermally more stable than GO itself. Mn of the polymers increased with increasing monomer/initiator ratio, while the polydispersity index decreased, indicating controlled polymerization. The composites were stable in DMF even after two months.",

keywords = "Crosslinked reduced graphene, Organic-soluble network, Polymer-graphene composite, Reversible Addition Fragmentation Chain Transfer (RAFT)",

author = "Mina Namvari and Biswas, \{Chandra S.\} and Qiao Wang and Wenlang Liang and Stadler, \{Florian J.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Inc.",

year = "2017",

month = oct,

day = "15",

doi = "10.1016/j.jcis.2017.06.007",

language = "English",

volume = "504",

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journal = "Journal of Colloid and Interface Science",

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T2 - A nano-initiator for preparation of well-defined amino acid-based polymer nanohybrids

AU - Namvari, Mina

AU - Biswas, Chandra S.

AU - Wang, Qiao

AU - Liang, Wenlang

AU - Stadler, Florian J.

PY - 2017/10/15

Y1 - 2017/10/15

N2 - Here, we demonstrate a novel reversible addition-fragmentation chain transfer agent (RAFT-CTA)-modified reduced graphene oxide nanosheets (CTA-rGONSs) by crosslinking rGONSs with a RAFT-CTA via esterification reaction. These nano CTA-rGONSs were used to polymerize a hydrophobic amino acid-based methacrylamide (N-acryloyl-L-phenylalanine methyl ester) monomer with different monomer/initiator ratios. Thermogravimetric analysis showed that the polymer-graphene composites were thermally more stable than GO itself. Mn of the polymers increased with increasing monomer/initiator ratio, while the polydispersity index decreased, indicating controlled polymerization. The composites were stable in DMF even after two months.

AB - Here, we demonstrate a novel reversible addition-fragmentation chain transfer agent (RAFT-CTA)-modified reduced graphene oxide nanosheets (CTA-rGONSs) by crosslinking rGONSs with a RAFT-CTA via esterification reaction. These nano CTA-rGONSs were used to polymerize a hydrophobic amino acid-based methacrylamide (N-acryloyl-L-phenylalanine methyl ester) monomer with different monomer/initiator ratios. Thermogravimetric analysis showed that the polymer-graphene composites were thermally more stable than GO itself. Mn of the polymers increased with increasing monomer/initiator ratio, while the polydispersity index decreased, indicating controlled polymerization. The composites were stable in DMF even after two months.

KW - Crosslinked reduced graphene

KW - Organic-soluble network

KW - Polymer-graphene composite

KW - Reversible Addition Fragmentation Chain Transfer (RAFT)

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DO - 10.1016/j.jcis.2017.06.007

M3 - Article

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AN - SCOPUS:85020722124

SN - 0021-9797

VL - 504

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EP - 740

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Crosslinking hydroxylated reduced graphene oxide with RAFT-CTA: A nano-initiator for preparation of well-defined amino acid-based polymer nanohybrids

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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