Biobased polymeric materials others

Industrial oilseeds are viable feedstocks for the preparation of polymeric materials, particularly thermosetting polymers liquid-phase polymers that are cured irreversibly via heat, irradiation, or chemical reactions to form an insoluble polymeric network. Paints, coatings, adhesives, foams, and gels are commonly thermosets. Biobased feedstocks are receiving increasing attentions as replacements for petroleum in the preparation of thermosets and other polymers due to the reduced environmental impact associated with their derivation (no mining involved, approximately neutral in the net production of the greenhouse gas, CO2) and increased cost competitiveness. 

In 2009, Coca Cola introduced the PlantBottle , which is made from partially biobased PET. The same material is now being used by Heinz. PET, as has been explained, is most often made by polymerizing ethylene glycol and terephthalic acid. Biobased ethylene glycol is now available. When it is used to make PET, the resulting polymer has about 30% biobased content. Coca Cola and others are working on economically viable routes to produce terephthalic acid from biobased sources, which would permit 100% biobased PET [8,9]. 

Modern biobased lubricants are mainly based on rapeseed oil, sunflower oil, soybean oil, and animal fats. These oils easily undergo oxidation due to their content of polyunsaturated fatty acids such as linoleic acid and linolenic acid. Efforts have been made to modify the oils to provide a more stable material and a product more competitive in performance to mineral oil-based lubricants. This modification can involve partial hydrogenation of oil and a shifting of its fatty acids to high oleic acid content [21]. Other reported changes that address the problem of unsaturation include alkylation, acylation, hydroformylation, hydrogenation, oligomerization (polymerization), and epoxidation [20, 22]. 

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