Synthesis of a novel thiolated photopolymerizable monomer derived from soybean oil and its thiol-ene photopolymerization with unsaturated monomers

• Autor(a) principal: Ortiz, Ricardo Acosta
• Data de Publicação: 2023
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/56229
• topic: soybean oil; thioacetic acid; thiol-ene photopolymerization

In this study is presented a synthetic methodology to prepare a thiolated monomer derived from renewable natural products resources such as the soybean oil. This product was thiolated by a thiol-ene coupling reaction between the double bonds of the vegetable oil and thioacetic acid. The obtained intermediate was subsequently hydrolyzed to obtain a mixture of thiolated fatty methyl esters. The attained mixture was characterized by FTIR and NMR spectroscopies. The reactivity of this compound was tested as comonomer in a thiol-ene photopolymerization using different types of unsaturated compounds. It was found that the thiolated compound reacted readily under UV irradiation forming polythioethers. The nature of the obtained polymers depended on the characteristics of the unsaturated monomers.