An Overview of the Chemical Modification of Natural Rubber
Natural rubber (NR) is produced by the tree, Hevea brasiliensis, with a virtually perfect cis-1,4- polyisoprenic structure1 and has excellent physical properties for its role as a general purpose elastomer. The main purpose of chemical modification would be to introduce functional pendent groups to provide new and improved methods of crosslinking or the grafting on of polymeric side chains. Enhanced resistance to aging, better bonding to glass, metals and textiles, and modified abrasion and friction characteristics could be other targets. The upgrading of physical properties such as oil resistance or air permeability could enable NR as a renewable resource to replace some oil-based speciality synthetic elastomers.
KeywordsNatural Rubber Peracetic Acid Natural Rubber Latex Epoxidized Natural Rubber Oxirane Oxygen
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