Synthesis and Characterization of Amphiphilic Reduced Graphene Oxide with Epoxidized Methyl Oleate

Ahn, B. Kollbe; Sung, Jonggeun; Li, Yonghui; Kim, Nam Hoon; Ikenberry, Myles; Hohn, Keith L.; Mohanty, Nihar; Nguyen, Phong; Sreeprasad, T. S.; Kraft, Stefan; Berry, Vikas; Sun, Xiuzhi Susan

doi:10.1002/adma.201104080

Cited by 26 publications

(17 citation statements)

References 67 publications

(71 reference statements)

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“…The C 1s XPS spectrum of GO clearly indicates a considerable extent of oxidation with four different fitted peaks that correspond to carbon atoms in different functional groups: the graphitic carbons (284.8 eV), the C in C–OH bonds (286.1 eV), the epoxide C (C=O=C, 287.2 eV), and the carboxylate carbon (O–C=O, 289.1 eV). However, after the in situ thermal reduction during the processing, the C 1s XPS spectrum of RGO only exhibits two peaks, which are attributed to graphitic carbons (284.7 eV) and the C in C–OH bonds (285.5 eV) . By comparing the spectra of GO and RGO, it is clear that most of the oxide functionality of GO was removed by the thermal reduction during the processing.…”

Section: Resultsmentioning

confidence: 99%

Role of In situ thermal‐reduced graphene oxide on the morphology and properties of biodegradable poly(Lactic acid)/poly(butylene succinate) blends

Wang

2017

Polymer Composites

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In this article, poly(lactic acid)/poly(butylene succinate)/ reduced graphene oxide (PLA/PBS/RGO) nanocomposites were first prepared by the in situ thermal reduction of graphene oxide (GO) during the processing, and the influence of RGO on the morphology, thermal, and mechanical properties of biodegradable PLA/PBS blends were investigated. X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and thermogravimetric analysis (TGA) showed that the GO was successfully in situ thermal reduced to RGO. Scanning electronic microscope (SEM) and dynamic mechanical properties (DMA) revealed that the adding of RGO enhanced the compatibility of PLA and PBS. DMA also indicated that higher storage modulus values were observed for PLA/PBS/RGO composites. The tensile strength and impact strength of the PLA/PBS/RGO composites increased with RGO content. POLYM.

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Section: Resultsmentioning

confidence: 99%

Role of In situ thermal‐reduced graphene oxide on the morphology and properties of biodegradable poly(Lactic acid)/poly(butylene succinate) blends

Wang

2017

Polymer Composites

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“…In addition, the absence of peak at 932 eV confirms the complete removal of the copper salt catalyst. Detailed analysis of high‐resolution carbon spectrum (Figure b) of the macroinitiator film reveals that there are only three main carbon bonds: CC (and CC) at 284.71 eV, CO at 286.37 eV, and CO at 288.70 eV . Take note that CN and CBr bonds do not appear probably because their contribution is relatively insignificant.…”

Section: Resultsmentioning

confidence: 99%

Free-Standing Macroinitiator Thin Film for Bifacial Polymer Chain Grafting

Leon

2015

Macromol. Chem. Phys.

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The study reports the fabrication of a free-standing reactive macroinitiator thin fi lm via simple layer-by-layer assembly and dissolution of the sacrifi cial layer. The resulting macroinitiator thin fi lm can be postfunctionalized by grafting polymer brush from it. Since the thin fi lm is free from any substrate, bifacial functionalization can be done on the free-standing fi lm. This approach is expected to signifi cantly increase the functionality of free-standing polymer brush for most applications like catalysis and sensor because of the increase in functional group density per area.

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“…However, in few reports bio-based units were used for the functionalization of RGO to obtain sustainable greener modification and follow stricter environmental restrictions. 23 In this milieu, among different renewable resources, sunflower oil can be used as an effective functionalizing agent due to its unique structural features and ease of desired chemical modifications by utilizing its functional groups like hydroxyl, double bond, ester, and so forth. Herein, we demonstrated the functionalization of RGO by monoglyceride of sunflower oil (MG) which is also one of the diol components.…”

Section: Introductionmentioning

confidence: 99%

Interpenetrating polymer network/functionalized‐reduced graphene oxide nanocomposite: As an advanced functional material

Ghosh

Karak

2021

J of Applied Polymer Sci

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In this report, smart polyurethane-polystyrene interpenetrating polymer network (IPN)-based nanocomposites were fabricated using simultaneous polymerization technique with different doses of functionalized reduced graphene oxide (f-RGO). RGO was functionalized with monoglyceride of sunflower oil in the presence of toluene diisocyanate. Successful functionalization of RGO was supported by Fouriertransform infrared spectroscopy, X-Ray diffraction, and transmission electron microscopy analyses. Most interestingly, the fabricated IPN-based nanocomposites showed significant enhancements in mechanical (tensile strength: 165%; elongation at break: 198%; toughness: 340%) and thermal (thermally stable up to 262 C) properties upon incorporation of 1 weight% of f-RGO. Moreover, the fabricated nanocomposites exhibited outstanding chemical resistance, self-cleaning behavior through surface hydrophobicity (static contact angle: 125.6-136.5), multi-stimuli responsive shape memory effect (100% recovery within 33-44 s by microwave and 265-308 s by sunlight) and thermally actuated artificial muscle-like behavior. Therefore, the studied smart nanocomposites with the aforementioned properties hold significant potential for possible advanced applications.

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Synthesis and Characterization of Amphiphilic Reduced Graphene Oxide with Epoxidized Methyl Oleate

Cited by 26 publications

References 67 publications

Role of In situ thermal‐reduced graphene oxide on the morphology and properties of biodegradable poly(Lactic acid)/poly(butylene succinate) blends

Role of In situ thermal‐reduced graphene oxide on the morphology and properties of biodegradable poly(Lactic acid)/poly(butylene succinate) blends

Free-Standing Macroinitiator Thin Film for Bifacial Polymer Chain Grafting

Interpenetrating polymer network/functionalized‐reduced graphene oxide nanocomposite: As an advanced functional material

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