Fats and oils as renewable feedstock for chemistry

Polymer precursors from catalytic reactions of natural oils

“…14 Value enhancement of triglycerides leads to the preparation of industrial products and mainly to surfactants, lubricants and polymers. [15][16][17][18] For instance, the production of surfactants being efficient and presenting interesting properties such as biocompatibility and biodegradability 19,20 is a successful example of industrial conversion of vegetable oils into valuable chemicals. [21][22][23] The area of industrial conversion of oils into chemicals being wide, the reader's attention will now be focused only in the field of polymers.…”

Linear Semicrystalline Polyesters from Fatty Acids by Complete Feedstock Molecule Utilization

“…Entirely chemical synthetic routes in which the original molecular structure of the utilized plant biomass is substantially retained are an interesting alternative to such biotechnological routes, as they can be efficient in terms of feedstock utilization and reaction space-time yields, and also provide novel properties. Plant oils [5][6][7] are in principle attractive substrates for semicrystalline long-chain polyesters, as the substrate already provides relatively long (CH 2 ) n crystallizable segments. This is illustrated by preparation of the difunctional monomer sebacic acid from ricinoleic acid, [8] which is converted into aliphatic polyamides such as nylon-6,10 with a beneficially low water uptake.…”

Catalytic Behaviors of CoII and MnII Compounds Bearing α-Diimine Ligands for Oxidative Polymerization or Drying Oils

“…1 Alkyd resins exhibit excellent performance properties that make them one of the most employed materials obtained from a renewable source in the coatings industry. [2][3][4] Unsaturated substrates, such as vegetable oils and their derivatives, can undertake a process known as oxidative polymerization. This process comprises several chemical reactions and starts from a hydrogen abstraction from the activated methylene group on the unsaturated chain, generating an organic radical (oxidative step).…”

“…This process is accompanied by the formation of volatile compounds, such as aldehydes or alcohols. [1][2][3][4][5] The oxidative polymerization of unsaturated oils can occur without the use of catalyst, however, under this condition, this process is too slow for industrial and practical applications. Indeed, depending on the application, the oxidative polymerization reaction need to be more or less rapid, and this is the reason that different catalytic systems have been developed.…”

“…These catalytic systems use to be well dissolved or dispersed in the oily matrix and functions as a deactivator of natural antioxidants, diminishing the induction period and accelerating oxygen absorption and peroxide formation. [1][2][3][4][5] Cobalt carboxylate-based complexes are an important group of driers, but due to the carcinogenic effects of cobalt, 1,4 they are progressively been substituted. In this context, manganese-based driers are considered a good alternative to overcome the cobalt-based analogues in numerous applications, however, most of the manganesebased driers are less active.…”