Abstract The structure of antioxidants significantly affects the anti-migration and thermal-oxidative aging properties nitrile butadiene rubber (NBR) composites, which are crucial for applications in aerospace, biomedical, fuel cell stack sealing industries. findings reveal that migration rate N -(4-anilino phenyl) maleic imide (MC), with a reactive double bond, is only 15.6%, exhibiting best e...

In this work, composites based on a hydride-forming fiber of multi-principal-component (MPC) Ti20Zr20Nb20V20Hf20 alloy, carbosil, dicumylperoxide and nitrile butadiene rubber (NBR) matrix were obtained. The prepared in three-stage process including the mixing elastomeric compounds via mill low-temperature vulcanization by heat pressing. Using dynamical mechanical analysis (DMA) differential sca...

Rhodococcus sp. strain M8 is a nitrile-degrading bacterium isolated from acrylonitrile-contaminated sites. This strain produces the enzymes for sequential nitrile degradation, cobalt-type nitrile hydratase, and amidase in large amounts. Its draft genome sequence, announced here, has an estimated size of 6.3 Mbp.

Alcaligenes sp. MTCC 10674 has a bienzymatic system for the hydrolysis of nitriles. The nitrile hydratase and amidase have been purified simultaneously to homogeneity using a combination of (NH)4SO4 precipitation, ion exchange chromatography and gel permeation chromatography. Nitrile hydratase and amidase have molecular weight of 47 and 114 kDa, respectively and exist as heterodimer. Optimum te...