Graphene oxide induced crystallization and hydrolytic degradation of poly(butylene succinate)

Du, Xue-chong; Xu, Xiaoqing; Liu, Xiaohao; Yang, Jing‐hui; Wang, Yong; Gao, Xiaoling

doi:10.1016/j.polymdegradstab.2015.11.011

Cited by 25 publications

(10 citation statements)

References 47 publications

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“…The reduction in crystallization rate was also observed in graphene oxide filled poly(lactic acid) composites, where the crystallization of poly(lactic acid) occurred in confined spaces formed by graphene oxide nanosheets 46 . The best balance of the two effects occurred when the content of GO was 0.05 wt% in the present study, which is different from the result reported by Du and coworkers 43 . In that study, 0.5 wt% was the optimal content for enhancing crystallization of PBS.…”

Section: Thermal Behavior Of Pbs/go Nanocompositescontrasting

confidence: 99%

“…Exfoliation of graphene in PBS has been achieved by Wang et al 9 when preparing PBS/graphene nanocomposite by solution processing. While in the case of PBS/GO composites, solution processing did not achieve exfoliation of GO as reported by Du et al 43,44 , and the exfoliation of GO was only achieved by in-situ polymerization as reported by Wang and coworkers 10 . While in-situ polymerization seems too complex to practical application, because this method usually requires suitable modification of conventional equipment and polymerization process.…”

Section: Introductionmentioning

confidence: 82%

“…Ultrasound facilitates exfoliation of GO in aqueous medium and coagulation process prevents aggregation of exfoliated GO lamellas by surface wrapping of PBS. We noticed that ultrasound was not applied in preparation of PBS/GO nanocomposites in previously reported literatures, where the technique to remove solvent was evaporation 43,44 . Simple stir may not provide sufficient force to exfoliate GO and they may tend to aggregate during long-time evaporation process, which may account for the platelet-like dispersion of GO within the prepared PBS/GO composites.…”

Section: Morphology Of Pbs/go Nanocompositesmentioning

confidence: 99%

“…Graphene and graphene oxide (GO) show many supreme properties such as high mechanical strength, Young's modulus, thermal conductivity, gas barrier property, and etc., which makes them ideal reinforcing fillers for various polymer matrices [38][39][40] . Both graphene and GO have been incorporated into PBS to reinforce mechanical properties 9,10,[41][42][43][44] . In-situ polymerization and solution processing are the two commonly used methods to incorporate graphene or graphene oxide into PBS.…”

Section: Introductionmentioning

confidence: 99%

“…The loading of exfoliated GO could decrease to show similar crystallization and mechanical behaviors in comparison with platelet-like dispersion. Although the morphology and non-isothermal crystallization kinetics of aggregated GO platelets reinforced PBS composites have been reported systematically 43,44 , those of exfoliated GO lamellas reinforced PBS nanocomposites have not been reported. Different crystallization and mechanical behaviors are anticipated if dispersion of GO enhanced.…”

Section: Introductionmentioning

confidence: 99%

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Morphology and isothermal crystallization of graphene oxide reinforced biodegradable poly(butylene succinate)

et al. 2017

Polymer Testing

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Graphene oxide (GO) was incorporated into poly(butylene succinate) (PBS) via a solution coagulation method to fabricate PBS/GO nanocomposites. Scanning electron microscope and transmission electron microscope observations indicated that GO with very thin layer dispersed in PBS uniformly and showed a good interfacial adhesion with PBS matrix. Differential scanning calorimetry analysis suggested that the crystallization ability of PBS increased first and then decreased with increase in the content of PBS. Isothermal crystallization kinetics investigation manifested that the overall crystallization rate of PBS increased first and then decreased with increasing PBS content while the crystallization mechanism remained unchanged. Polarized optical microscopy analysis indicated that GO worked as an effective nucleating agent for PBS. X-ray diffraction characterization suggested that incorporation of GO did not change the crystal structure of PBS. Both tensile testing and dynamic mechanical analysis witnessed the reinforcement in mechanical performance of PBS by incorporation of GO.

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Section: Thermal Behavior Of Pbs/go Nanocompositescontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 82%

Section: Morphology Of Pbs/go Nanocompositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphology and isothermal crystallization of graphene oxide reinforced biodegradable poly(butylene succinate)

et al. 2017

Polymer Testing

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Crystallization kinetics, mechanical properties, and hydrolytic degradation of novel eco‐friendly poly(butylene diglycolate) containing ether linkages

Jiang

Qiu

2016

J of Applied Polymer Sci

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The basic thermal properties, isothermal melt crystallization kinetics, spherulitic morphology, mechanical properties, and hydrolytic degradation behavior of a novel eco‐friendly polyester poly(butylene diglycolate) (PBDG) containing ether linkages were systematically studied with several techniques in this research. PBDG is an aliphatic polyester with high thermal stability. It had a glass transition temperature (Tg) of −25.7 °C, a melting point temperature of 65.1 °C, and an equilibrium melting point of 73.2 °C. During the isothermal melt crystallization, PBDG crystallized slowly with increasing crystallization temperature, but the crystallization mechanism did not change. Negative spherulites were observed for PBDG. The mechanical properties of PBDG were investigated from the tensile testing. As a ductile polyester, PBDG possessed good mechanical properties. PBDG also showed a fast hydrolytic degradation rate. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44186.

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Physical and biological properties of electrospun poly(d,l‐lactide)/nanoclay and poly(d,l‐lactide)/nanosilica nanofibrous scaffold for bone tissue engineering

Lopresti

Pavia

Ceraulo

et al. 2021

J Biomedical Materials Res

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Electrospun scaffolds exhibiting high physical performances with the ability to support cell attachment and proliferation are attracting more and more scientific interest for tissue engineering applications. The inclusion of inorganic nanoparticles such as nanosilica and nanoclay into electrospun biopolymeric matrices can meet these challenging requirements. The silica and clay incorporation into polymeric nanofibers has been reported to enhance and improve the mechanical properties as well as the osteogenic properties of the scaffolds. In this work, for the first time, the physical and biological properties of polylactic acid (PLA) electrospun mats filled with different concentrations of nanosilica and nanoclay were evaluated and compared. The inclusion of the particles was evaluated through morphological investigations and Fourier transform infrared spectroscopy. The morphology of nanofibers was differently affected by the amount and kind of fillers and it was correlated to the viscosity of the polymeric suspensions. The wettability of the scaffolds, evaluated through wet contact angle measurements, slightly increased for both the nanocomposites. The crystallinity of the systems was investigated by differential scanning calorimetry highlighting the nucleating action of both nanosilica and nanoclay on PLA. Scaffolds were mechanically characterized with tensile tests to evaluate the reinforcing action of the fillers. Finally, cell culture assays with pre‐osteoblastic cells were conducted on a selected composite scaffold in order to compare the cell proliferation and morphology with that of neat PLA scaffolds. Based on the results, we can convince that nanosilica and nanoclay can be both considered great potential fillers for electrospun systems engineered for bone tissue regeneration.

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Graphene oxide induced crystallization and hydrolytic degradation of poly(butylene succinate)

Cited by 25 publications

References 47 publications

Morphology and isothermal crystallization of graphene oxide reinforced biodegradable poly(butylene succinate)

Morphology and isothermal crystallization of graphene oxide reinforced biodegradable poly(butylene succinate)

Crystallization kinetics, mechanical properties, and hydrolytic degradation of novel eco‐friendly poly(butylene diglycolate) containing ether linkages

Physical and biological properties of electrospun poly(d,l‐lactide)/nanoclay and poly(d,l‐lactide)/nanosilica nanofibrous scaffold for bone tissue engineering

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