Antioxidation behavior of bonded primary-secondary antioxidant/styrene-butadiene rubber composite: Experimental and molecular simulation investigations

Luo, Kaiqiang; You, Guohua; Zhang, Sidian; Wang, Zheng; Wu, Sizhu

doi:10.1016/j.polymer.2019.122143

Cited by 23 publications

(19 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mean square displacement (MSD) may be used to reflect the movement and migration ability of small molecules. 45 The calculation of MSD is shown in formula 4 ( 42 ) …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Effect of Polymer Excipients on the Dispersibility, Interaction, Solubility, and Scavenging Reactive Oxygen Species of Myricetin Solid Dispersion: Experiment and Molecular Simulation

Zhang

Meng

et al. 2022

ACS Omega

Self Cite

View full text Add to dashboard Cite

Although the preparation of amorphous solid dispersions can improve the solubility of crystalline drugs, there is still a lack of guidance on the micromechanism in the screening and evaluation of polymer excipients. In this study, a particular method of experimental characterization combined with molecular simulation was attempted on solubilization of myricetin (MYR) by solid dispersion. According to the analysis of the dispersibility and hydrogen-bond interaction, the effectiveness of the solid dispersion and the predicted sequence of poly(vinyl pyrrolidone) (PVP) > hypromellose (HPMC) > poly(ethylene glycol) (PEG) as the polymer excipient were verified. Through the dissolution, cell viability, and reactive oxygen species (ROS)-level detection, the reliability of simulation and micromechanism analysis was further confirmed. This work not only provided the theoretical guidance and screening basis for the miscibility of solid dispersions from the microscopic level but also served as a reference for the modification of new drugs.

show abstract

“…The mean square displacement (MSD) may be used to reflect the movement and migration ability of small molecules. 45 The calculation of MSD is shown in formula 4 ( 42 ) …”

Section: Resultsmentioning

confidence: 99%

“…When the system reached equilibrium, the density of the system converges (with fluctuations within 5%) and it was compared with the actual density. Besides, its energy convergences including potential energy, kinetic energy, nonbond energy, and total energy were also detected, and their fluctuation range did not exceed 5% as well …”

Section: Molecular Simulationmentioning

confidence: 99%

Study on the Effect of Polymer Excipients on the Dispersibility, Interaction, Solubility, and Scavenging Reactive Oxygen Species of Myricetin Solid Dispersion: Experiment and Molecular Simulation

Zhang

Meng

et al. 2022

ACS Omega

Self Cite

View full text Add to dashboard Cite

show abstract

“…Based on the weight loss of these three nanomaterials, it could be calculated that the weight content of PDA on CNTs‐PDA is about 19.4 wt%, while the loading of antioxidants AO on the CNTs‐AO is approximately 11.7 wt%. In comparison antioxidant load work, 13–15 this is a relatively high load rate.…”

Section: Resultsmentioning

confidence: 99%

“…Lin et al 14 synthesized a novel antioxidant HS‐s‐RT by grafting aminodiphenylamine (RT) on the surface of halloysite nanotubes (HNTs) to improve the antioxidative efficiency and mechanical performances of SBR composites. Luo et al 15 put the two antioxidant molecules together, and the bonded primary‐secondary antioxidant was synthesized successfully via thiol‐ene addition reaction of primary antioxidant N‐(4‐anilino phenyl) maleic imide (MC) with secondary antioxidant 2‐mercaptobenzimidazole (MB). These works can prove that the loaded antioxidant has the characteristics of preventing the antioxidant from migrating out of the rubber matrix while maintaining excellent anti‐aging.…”

Section: Introductionmentioning

confidence: 99%

Balancing anti‐migration and anti‐aging behavior of binary antioxidants for high‐performance 1,2‐polybutadiene rubber

Han

Geng

Wang

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

For rubber materials, the antioxidants are significant for maintaining the long service life when suffering from external stimuli. However, the common low-molecularweight antioxidants easily migrate to the rubber surface and lose the anti-aging effect. In this work, we develop highly anti-migration hindered phenolic antioxidants, which have been obtained by covalently grafting 3,5-di-tert-butyl-4-hydroxybenzoic acid (AO) onto carbon nanotubes (CNTs). To improve the adhesion of AO and CNTs, the polydopamine with the potential reactive functional groups was linked between antioxidants and CNTs by mussel biomimetic strategy. The binary antioxidants integrated the good reinforcement and dispersity of CNTs with the anti-aging characteristics of hindered phenol. What is more, the experimental results indicate that the total loading efficiency of AO could reach 11.7 wt%. The 1,2-Polybutadiene/CNTs-AO composites could be stored in a thermal oxidation environment for 15 days with minimal degradation of mechanical properties. This strategy proposed herein provides insights into the development of highly anti-migration and anti-aging antioxidants by a simple, cost-effective, and pollution-free method.

show abstract

“…The absorption peak near 2568 cm À1 was the absorption peak of N H on the ring. [28] The thermal properties of MB were tested in nitrogen atmosphere at the heating rate of 10 C/min and the gas flow rate of 50 ml/min (Figure 1B). Obviously, MB has only one weightlessness step curve and decomposed rapidly at 332.1 C, and the amount of residual carbon is 0.37 wt% F I G U R E 1 Infrared spectrum, TGA and DSC curves of MB…”

Section: Structure and Thermal Properties Of Mbmentioning

confidence: 99%

Synchronously improved ozone aging resistance and tribological performance of self‐lubricating fabric composites via 2‐mercaptobenzimidazole

Zhang

Chen

et al. 2022

Polymer Composites

View full text Add to dashboard Cite

Self-lubricating fabric composite can be used as liner material in plain bearings of aeronautical aircraft. The concentration of ozone in the cruising altitude of aircraft is relatively high and the oxidation of ozone will reduce the tribological property and service life of the self-lubricating fabric composites. In present work, 2-mercaptobenzimidazole (MB) was chosen and filled into selflubricating fabric composites to improve their ozone aging resistance and wear resistance performance. Characterizations demonstrated that the optimum filling ratio of MB was 4 wt%. The glass transition temperature of resin and decomposition temperature of the composite filled with 4 wt% MB were 96.3 s and 475 C, which increased by 12.6% and 6.7% compared with that of resin and composites without filling MB, respectively. The tribological performance and ozone aging resistance performance of MB reinforced self-lubricating fabric composites acquired obviously enhancement. The wear rate of MB reinforced self-lubricating fabric composites after different ozone aging time decreased by 42.4%-61.8% compared with that of composites without filling MB owing to that the addition of MB improved the oxidation resistance and thermal stability of self-lubricating composites.

show abstract

Antioxidation behavior of bonded primary-secondary antioxidant/styrene-butadiene rubber composite: Experimental and molecular simulation investigations

Cited by 23 publications

References 44 publications

Study on the Effect of Polymer Excipients on the Dispersibility, Interaction, Solubility, and Scavenging Reactive Oxygen Species of Myricetin Solid Dispersion: Experiment and Molecular Simulation

Study on the Effect of Polymer Excipients on the Dispersibility, Interaction, Solubility, and Scavenging Reactive Oxygen Species of Myricetin Solid Dispersion: Experiment and Molecular Simulation

Balancing anti‐migration and anti‐aging behavior of binary antioxidants for high‐performance 1,2‐polybutadiene rubber

Synchronously improved ozone aging resistance and tribological performance of self‐lubricating fabric composites via 2‐mercaptobenzimidazole

Contact Info

Product

Resources

About