Effect of Low Octavinyl-Polyhedral Oligomeric Silsesquioxanes Loading on the Crystallization Kinetics and Morphology of Biodegradable Poly(ethylene succinate-<i>co</i>-5.1 mol % ethylene adipate) as an Efficient Nucleating Agent

Chen, Kai; Yu, Jing; Qiu, Zhaobin

doi:10.1021/ie303510h

Cited by 19 publications

(14 citation statements)

References 38 publications

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“…In this regard, it is believed that silver chloride particles facilitated the crystallization process by increasing the heterogonous nuclei formation caused by intermolecular interaction between the polymer chains and silver chloride. Nucleation effect of silver particles was also reported in other studies [35][36][37]. Finally, there was no significant change in heat of fusion of the samples signifying that silver loading did not alter the total crystallization amount of the PCL fibres.…”

Section: Thermal Analysissupporting

confidence: 84%

Fabrication and characterization of electrospun poly(e-caprolactone) fibrous membrane with antibacterial functionality

2017

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This research study is mainly targeted on fabrication and characterization of antibacterial poly(e-caprolactone) (PCL) based fibrous membrane containing silver chloride particles. Micro/nano fibres were produced by electrospinning and characterized with TGA, DSC, SEM and mechanical analysis. It was found that addition of silver particles slightly reduced onset of thermal degradation and increased crystallization temperature of neat PCL. Silver-loaded samples exhibited higher tensile stress and lower strain revealing that the particles behaved as reinforcing agent. Moreover, addition of silver chloride resulted in beaded surface texture and formation of finer fibres as opposed to the neat. Antibacterial properties were tested against Gram-negative and Gram-positive bacteria and remarkable biocidal functionalities were obtained with about six logs reduction of Staphylococcus aureus and Escherichia coli O157:H7.

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Section: Thermal Analysissupporting

confidence: 84%

Fabrication and characterization of electrospun poly(e-caprolactone) fibrous membrane with antibacterial functionality

2017

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“…POSS particles were found in the good dispersed form at their lower contents in both plasticized and non-plasticized PLA when they were incorporated into PLA matrix, which resulted in higher mechanical properties such as elongation at break. [59,60] One of the disadvantages of plasticizers is their migration to the polymer surfaces with time. This situation results in deteriorating the properties.…”

Section: Effect Of Poss On the Mechanical Properties Of Plamentioning

confidence: 99%

A review on polyhedral oligomeric silsesquioxanes as a new multipurpose nanohybrid additive for poly(lactic acid) and poly(lactic acid) hybrid composites

et al. 2022

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The production of petroleum‐based polymers in huge amounts is perilous for our ecosystem and oil reserves. The use of biodegradable polymers instead of synthetic polymers for various commodity, engineering, and biomedical applications remains the overriding concern of the researchers in last decades. Although poly(lactic acid) (PLA) is considered to be the most befitting substitute for conventional petroleum‐based products because of its superlative mechanical properties, material & processing cost, and non‐toxicity, they have some consequential limitations for various applications because of their slow rate of crystallization, low thermal stability, high brittleness, and low toughness. To overwhelm these deficiencies during the last two decades, researchers have developed various techniques to tailor the properties of PLA, that is, blending with other polymers or using additives such as nanofillers. Among all the nanofillers, for example, carbon nanotubes and organoclays, polyhedral oligomeric silsesquioxanes (POSS) was found the most promising nanofiller because of its organic and inorganic nanostructure and fine dispersion into PLA matrix. This article reviews all the investigations relevant to POSS incorporation into PLA or blends of PLA with other polymers to compare the mechanical, morphological, and physical properties of the ameliorated composites and the neat PLA.

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“…It could be discovered that all the DSC curves have a cold crystallization peak and the range of the cold crystallization temperature ( T p ) is 258.5 °C to 278.9 °C. The same phenomenon occurs in two DSC curves that the T p moves to the high temperature and cold crystallization peak becomes larger with the heating rate increasing, which is mainly because the PEN crystals have the less nucleation and crystal growth time as the heating rate increases [35]. At the same time, the PEN nanocomposite shows the sharper cold crystallization peak and lower cold crystallization temperature with 2 wt% h-BN@(PDA+PEI) at each heating rate.…”

Section: Resultsmentioning

confidence: 62%

Polyethylenimine Assisted Bio-Inspired Surface Functionalization of Hexagonal Boron Nitride for Enhancing the Crystallization and the Properties of Poly(Arylene Ether Nitrile)

Wang

Tong

et al. 2019

Nanomaterials

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Semi-crystalline poly(arylene ether nitrile) (PEN) has exhibited remarkable potential in various fields. However, the inherent drawbacks of PEN such as slow crystalline rate and low crystallinity limit its further development. To alleviate this problem, the choice of nanofiller as nucleation agent and the interfacial compatibility between nanofiller and PEN matrix are two momentous factors that need to be considered. Accordingly, in this work, functionalized hexagonal boron nitride (h-BN@(PDA+PEI)) was successfully synthesized via polyethylenimine (PEI) assisted bio-inspired surface functionalization, and then homogeneously dispersed in the PEN resin using solution casting method to obtain functional polymer nanocomposite films with strengthening the crystallization behavior, mechanical and dielectric properties. Various testing methods including differential scanning calorimetry (DSC), scanning electron microscopy (SEM), X-ray diffraction (XRD), and polarizing microscope (POM) were applied to intricately analyze the effect of h-BN@(PDA+PEI) on the crystallization behavior of PEN composites. The testing results certificated that the h-BN@(PDA+PEI) can effectively improve the crystallinity (from 6.56% to 14.90%), and the spherulite size of PEN was reduced while the nucleation density of nanocomposites was raised. Furthermore, the non-isothermal crystallization kinetics demonstrated that 2 wt% h-BN@(PDA+PEI) could significantly reduce the cold crystallization temperature (Tp) and the crystallization activation energy (Ea) (from 359.7 KJ/mol to 292.8 KJ/mol), while it improved the crystallization rate (Kc) of PEN. In addition, the mechanical and dielectric properties of nanocomposite films were also reinforced to further broaden the application of semi-crystalline PEN. Therefore, the h-BN@(PDA+PEI) can function as an effectual nucleating agent and enhance the performance of PEN.

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Effect of Low Octavinyl-Polyhedral Oligomeric Silsesquioxanes Loading on the Crystallization Kinetics and Morphology of Biodegradable Poly(ethylene succinate-co-5.1 mol % ethylene adipate) as an Efficient Nucleating Agent

Cited by 19 publications

References 38 publications

Fabrication and characterization of electrospun poly(e-caprolactone) fibrous membrane with antibacterial functionality

Fabrication and characterization of electrospun poly(e-caprolactone) fibrous membrane with antibacterial functionality

A review on polyhedral oligomeric silsesquioxanes as a new multipurpose nanohybrid additive for poly(lactic acid) and poly(lactic acid) hybrid composites

Polyethylenimine Assisted Bio-Inspired Surface Functionalization of Hexagonal Boron Nitride for Enhancing the Crystallization and the Properties of Poly(Arylene Ether Nitrile)

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