![]() ![]() In fact, it is well known that organo-thiols and organo-disulfide can be chemisorbed on gold, silver, and copper through the formation of metal-S bonds. In addition to giving a dynamic character to the polymer chemical structure, the presence of disulfide bonds sparked interest in exploring a possible application of the polymer in a combined use with metals. ![]() In fact, oleic acid has already been used, both alone and in combination with other bio-based monomers, in the preparation of “classic” and dynamic polymers, resulting in the obtainment of materials with interesting mechanical properties, which vary depending on the polymer composition. Therefore, the use of WCO in the preparation of recyclable materials would be perfectly in line with the financing principles of the circular economy. The global annual production of WCO is estimated at around 16.5 million tons, representing one of the most critical hazardous agents for the aquatic environment. This monosaturated omega-9 fatty acid is the major component of most of the vegetable oils and, more importantly from the sustainability point of view, it is one of the major constituents, in form of triglyceride, of waste cooking oils (WCO) and the major component of olive mill wastewaters. Therefore, in the present work, oleic acid has been used as the starting material for the synthesis of a dynamic polymer. Then, the application of the polymer as a solvent-free reusable adhesive for copper was investigated by lap joint shear tests and comparisons with the properties of an analogous material, devoid of the disulfide bonds, were conducted.Ī further step forward in the preparation of more sustainable polymeric materials can be pursued by using bio- or waste-derived materials for the monomer synthesis. Moreover, the polymer can strongly interact with copper surfaces through the formation of stable Cu-S bonds. In particular, oleic acid has been used as starting material to follow the founding principles of the circular economy system and, thanks to the aromatic disulfide component, which is the foundation of the material dynamic characteristics, the obtained polymer resulted as being reprocessable and self-healable. Consequently, the synthesis of a dynamic covalent chemistry-based polymer and its chemical, thermal, and mechanical characterizations are reported in the present research. This is due to the fact that polymers containing dynamic functions possess a structure that affords reprocessability, recyclability and peculiar self-healing properties inconceivable for “classic” polymer networks. ![]() In the last decade, the application of dynamic covalent chemistry in the field of polymeric materials has become the subject of an increasing number of studies, gaining applicative relevance. ![]()
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