Affiliation:
1. Key Laboratory of Rubber‐Plastics of Ministry of Education, School of Polymer Science and Engineering, College of Economics and Management Qingdao University of Science and Technology Qingdao China
2. Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization Yellow River Delta Jingbo Chemical Research Institute Co. Ltd Binzhou China
Abstract
AbstractHydrogenated nitrile butadiene rubber (HNBR) is a high‐performance elastomer widely used in the petrochemical and automotive industries. A ruthenium‐based catalyst, namely [1,3‐bis(2,4,6‐trimethylphenyl)‐2‐imidazolidinylidene]‐[2‐[[(4‐methylphenyl)imino]methyl]‐4‐nitrophenoyl]chloro[3‐phenylindenylidene]ruthenium(II) (M41), was investigated for the direct hydrogenation of NBR latex. The catalytic selectivity for the hydrogenation of CC bond instead of CN group was confirmed by both Fourier transform infrared and 1H NMR spectroscopies. The effects of reaction conditions (such as temperature, pressure, catalyst levels, agitation speed and solid content) on the hydrogenation reaction were examined, and hydrogenation products with over 95 mol% conversion were obtained for only 3 h with a catalyst/NBR ratio of 0.05 wt% and no gel was formed within HNBR. The results suggest that the current limitations in the hydrogenation of NBR latex could be addressed with this catalyst. © 2023 Society of Industrial Chemistry.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shandong Province
Taishan Scholar Project of Shandong Province
Subject
Polymers and Plastics,Materials Chemistry,Organic Chemistry
Cited by
1 articles.
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