Upgrading of acrylonitrile–butadiene copolymer properties using natural rubber–graft–<i>N</i>‐(4‐aminodiphenylether) acrylamide

Al-Ghonamy, Abdulaziz I.; Barakat, Mirham A. Y.

doi:10.1002/app.32571

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…To avoid the loss of antiaging molecules, macromolecular or polymeric antiaging molecules were used [19]. Many acrylamide based polymeric antiaging compounds were used to improve the aging properties of different polymers [29,30]. The antiaging efficiency can be evaluated via retention in the mechanical properties of the composite containing the antiaging compound [31].…”

Section: Rheometric Properties and Crosslink Densitymentioning

confidence: 99%

Effect of poly (acrylamide-co-acrylic acid salt) on anti-aging properties and adhesion between acrylonitrile butadiene rubber and polyester fabric

2023

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In this study, a multifunction polymeric adhesion promoter and anti-aging compound based on the triethanolamine salt of acrylamide acrylic acid copolymer (COS) was prepared and characterized using Fourier-transform infrared spectroscopy (FTIR). The impact of different COS contents on the tensile, adhesion, and thermal properties of NBR composite and NBR/PET sandwich was evaluated. The NBR composites containing COS displayed good retention of their mechanical properties with increasing thermal ageing time, while the composite without COS showed a decrease in its mechanical properties. The highest tensile strength (17.5 MPa with a retention value of 0.6%) after 7 days of thermal aging was recorded for NBR composite, which contains 5 phr (parts per hundred parts of rubber) of COS (COS 5), compared to NBR composite without COS (COS 0), which recorded 15.1 MPa with a retention value of -27.4%. In addition, the COS 5 composite displayed an improvement in peel strength of 16.4% compared to the COS 0. The results of the thermogarvemetric analysis (TGA) supported the anti-thermal ageing effect of COS, where the initial decomposition temperature (Ti) value increased by 11.7 and 9.3 °C, after addition of 5 and 10 phr of COS to NBR composite, respectively. In addition, the other thermogravemetric parameters investigated displayed a significant increase in their values, which confirms the improvement in thermal stability of NBR composite in the presence of COS. Also, the air permeability of the PET/NBR sandwich decreased by 80% after the addition of 7.5 phr of COS.

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Section: Rheometric Properties and Crosslink Densitymentioning

confidence: 99%

Effect of poly (acrylamide-co-acrylic acid salt) on anti-aging properties and adhesion between acrylonitrile butadiene rubber and polyester fabric

2023

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“…One common approach to address antioxidant migration is to increase their relative molecular weight. − Luo et al developed an accelerator, BTC (the structure is shown in Table S2), via a thiol–ene click chemical reaction involving N -4-(anilinophenyl)maleimide (antiaging agent MC) and 2-mercaptobenzothiazole (accelerator MBT). BTC was subsequently incorporated into styrene–butadiene rubber to create rubber composites.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of a Novel Reactive and Low-Migration-Resistant Antioxidant and Its Application in Rubber Composites

Wang,

Sun,

et al. 2024

ACS Omega

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The addition of antioxidants to rubber is one of the most economical and effective methods for delaying rubber aging. However, antioxidant migration can cause environmental pollution. To address this issue, a new reactive antioxidant was synthesized via the chemical bonding of glycidyl methacrylate (GMA) and p-aminodiphenylamine (PPDA). The product was characterized by Fourier-transform infrared spectroscopy, which confirmed the successful reaction between GMA and PPDA, resulting in a compound with the expected structure. The mixture was then combined with a composite of styrene−butadiene rubber and carbon black. The tensile strength, antioxidant properties, migration, and RPA of the resulting materials were tested and compared with those of the commercial antioxidants N-(1,3-dimethylbutyl)-N′phenyl-p-phenylenediamine, N-isopropyl-N′-phenyl-1,4-phenylenediamine, and poly(1,2-dihydro-2,2,4-trimethylquinoline). After the glycidyl methacrylate antioxidant was grafted onto paminodiphenylamine, it became highly compatible with and dispersed in the rubber matrix. The antiaging and antimigration properties of the rubber antioxidants were enhanced without damaging the mechanical properties of the rubber matrix. The shortterm and long-term antiaging and antimigration properties of this antioxidant are superior to those of commercially available antioxidants.

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“…As these radical polymerization reactions were typically performed under stringent conditions, such as elevated temperatures, the initiators, (e.g., peroxides) must be carefully selected to prevent oxidative degradation of the NR material. To address this obstacle, stabilizers or antioxidants were used to scavenge excess free radicals on the NR surface …”

Section: Introductionmentioning

confidence: 99%

Macromolecular photoinitiators enhance the hydrophilicity and lubricity of natural rubber

Chin

Xiao

Cooper

et al. 2016

J of Applied Polymer Sci

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A mild and facile strategy to coat natural rubber (NR) with a hydrophilic coating is described that uses light and photoinitiator copolymers. Five high molecular weight photoinitiator copolymers, composed of hydrophilic (e.g., 2-hydroxyethyl acrylate [HEA], poly(ethylene glycol) [PEG], N-vinylpyrrolidone [NVP], N-isopropylacrylamide [NIDAM], and acrylic acid [AA]) and hydrophobic benzophenone (BP) units, are synthesized and evaluated for coating NR on UV irradiation. When the HEA/BP, NVP/BP, and AA/BP macromolecular photoinitiators attach to the NR surface, the latter becomes hydrophilic. The resulting hydrophilic coatings on NR sheets are analyzed via FT-IR spectroscopy, scanning electron microscopy, atomic force microscopy, contact angle measurements, and transwell cytotoxicity assays using NIH 3T3 fibroblast cells. The addition of high molecular weight hydrophilic polymers (e.g., polyvinylpyrrolidone and poly(2-methacryloyloxyethyl phosphorylcholine)) to the coating further enhances the coating's hydrophilicity and lubricity. The application of these non-cytotoxic, hydrophilic, and lubricious coatings on NR expands current applications and usage of NR.

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Upgrading of acrylonitrile–butadiene copolymer properties using natural rubber–graft–N‐(4‐aminodiphenylether) acrylamide

Cited by 10 publications

References 11 publications

Effect of poly (acrylamide-co-acrylic acid salt) on anti-aging properties and adhesion between acrylonitrile butadiene rubber and polyester fabric

Effect of poly (acrylamide-co-acrylic acid salt) on anti-aging properties and adhesion between acrylonitrile butadiene rubber and polyester fabric

Synthesis and Properties of a Novel Reactive and Low-Migration-Resistant Antioxidant and Its Application in Rubber Composites

Macromolecular photoinitiators enhance the hydrophilicity and lubricity of natural rubber

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