Selective hydrogenation of nitrile butadiene rubber latex using Catmetium®RF 4 catalyst

Tong, Weichao; Chen, Hanchu; Zhang, Yuxiang; Zhang, Zhuo; Fu, Yunlei; Qi, Haocheng; Zhou, Defang; Li, Yanyan; Wang, Hui

doi:10.1016/j.cattod.2022.02.015

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…Due to the high saturation of its molecular chains, hydrogenated elastomers have demonstrated exceptional stability in withstanding extreme environmental conditions and have found applications in various demanding industrial sectors, including automotive components, oil drilling, aerospace, and other performance-critical environments [12]. Consequently, hydrogenated nitrile rubber (HNBR) has emerged as a material that offers superior resistance to heat and aging while retaining its inherent oil resistance and wear resistance properties [13,14]. The primary challenge in producing hydrogenated nitrile rubber (HNBR) has been investigated to achieve selective hydrogenation of the C=C bonds while maintaining the integrity of the nitrile groups within the rubber [15,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Poly(Butadiene–Styrene–Vinyl Pyridine)/Poly(Acrylonitrile–Butadiene) Core–Shell Nanoparticles by Intermittent Seeded Emulsion Polymerization and Their Catalytic Latex Hydrogenation

Yuan,

Li,

Dou

et al. 2024

Catalysts

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Seed emulsion polymerization was an effective modification method to improve not only the properties of polymers but also the compatibility between different polymers by designing special core-shell structures. In this study, poly (butadiene-styrene-vinyl pyridine) (VPR)/poly (acrylonitrile-butadiene) (NBR) core–shell nanoparticles (VPR/NBR) were prepared by seed emulsion polymerization using VPR as seed emulsion and butadiene and acrylonitrile as monomers. Subsequently, HVPR/HNBR was obtained by direct hydrogenation of the core–shell nanoparticles in latex using Wilkinson’s catalyst under high temperature and H2 pressure. It is noteworthy that the unsaturated C=C double bonds in the core (VPR) and shell (NBR) of HVPR/HNBR nanoparticles were reduced simultaneously during the hydrogenation process without obvious sequence. The particle size and size distribution of the particles remained consistent before and after hydrogenation, indicating that the synthesized core-shell nanoparticles have excellent stability. This study provides a new perspective on the chemical modification of NBR and promises an environmentally friendly “green” process for the industrial hydrogenation of unsaturated elastomers.

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