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Unformatted text preview: hydrogen atoms in the polymer chains. Hydrogen abstraction is a process that the radical removes a hydrogen atom from another nearby atom, through which radicals are transferred from the peroxide molecular fragments to the rubber backbone. (c) Radical coupling Rubber radicals are highly reactive species and when the two of these radicals come in contact, the unpaired electrons will couple and form a covalent bond or crosslink between the rubber chains. ROOR RO* + *OR RO* + P-H ROH + P*...
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- Spring '08