Surface Modification of Sulfur-Assisted Reduced Graphene Oxide with Poly(phenylene sulfide) for Multifunctional Nanocomposites

The sulfur on the sulfur-assisted reduced graphene oxide (SrGO) surface provides the origin of poly(phenylene sulfide) PPS-grafting via S Ar mechanism. In-situ polymerization from sulfur on SrGO afforded surface modification of SrGO, resulting in enhanced dispersibility in PPS. The tensile strength,...

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Bibliographic Details
Published in:Polymers 2022-02, Vol.14 (4), p.732
Main Authors: Choi, Minsik, Kim, Junghwan, Oh, Yuna, Yu, Jaesang, Kim, Sung-Gi, Yoo, Heejoun, Ryu, Seongwoo, You, Nam-Ho, Ku, Bon-Cheol
Format: Article
Language:English
Subjects:
Chemicals
Conductivity
Dilution
Extrusion
Graphene
Heat
Nanocomposites
Physical properties
Polymerization
Polymers
Polyphenylene sulfides
Resins
Sulfur
Tensile strength
Thermal conductivity
X ray microtomography
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Summary:The sulfur on the sulfur-assisted reduced graphene oxide (SrGO) surface provides the origin of poly(phenylene sulfide) PPS-grafting via S Ar mechanism. In-situ polymerization from sulfur on SrGO afforded surface modification of SrGO, resulting in enhanced dispersibility in PPS. The tensile strength, electrical and thermal conductivities, and flame retardancy of PPS-coated SrGO were efficiently enhanced using highly concentrated SrGO and masterbatch (MB) for industrial purposes. Three-dimensional X-ray microtomography scanning revealed that diluting MB in the PPS resin afforded finely distributed SrGO across the PPS resin, compared to the aggregated state of graphene oxide. For the samples after dilution, the thermal conductivity and flame retardancy of PPS/SrGO are preserved and typically enhanced by up to 20%. The proposed PPS/SrGO MB shows potential application as an additive for reinforced PPS due to the ease of addition during the extrusion process.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14040732