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A series of hydrogenated natural rubbers, HNRs, were prepared by homogenous hydrogenation using H2 gas with a rhodium catalyst (chlorotris(triphenylphosphine)rhodium) in toluene. The HNRs were linear polymers with molecular weights greater than 800,000. These rubbers were vulcanized using sulfur and peroxide compounds. Vulcanized 100% HNR has a low glass transition temperature (Tg = −43°C) and excellent abrasion resistance, and is resistant to oxidation and ozonolysis ageing.
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INOUE et al. (2006) studied this question.
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