Minsik, Choi Junghwan Kim Oh Yuna Jaesang Yu Sung-Gi Kim Heejoun Yoo Seongwoo Ryu 유남호 구본철 2024-01-19T12:34:15Z 2024-01-19T12:34:15Z 2022-02-17 2022-02 https://pubs.kist.re.kr/handle/201004/115682 The sulfur on the sulfur-assisted reduced graphene oxide (SrGO) surface provides the origin of poly(phenylene sulfide) PPS-grafting via SNAr 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. English MDPI Open Access Publishing Surface Modification of Sulfur-Assisted Reduced Graphene Oxide with Poly(phenylene sulfide) for Multifunctional Nanocomposites Article 10.3390/polym14040732 1 Polymers, v.14, no.4, pp.732 Polymers 14 4 732 Y scie scopus 000764716600001 Polymer Science Polymer Science POST FIRE BEHAVIOR POLYPHENYLENE SULFIDE POLY(P-PHENYLENE SULFIDE) THERMAL-CONDUCTIVITY THEORETICAL APPROACH COMPOSITES GRAPHITE POLYMERIZATION FUNCTIONALIZATION DISPERSION in-situ polymerization graphene nanocomposite surface modification poly(phenylene sulfide)