Polímeros: Ciência e Tecnologia
Polímeros: Ciência e Tecnologia
Original Article

PVC plasticizer from trimethylolpropane trioleate: synthesis, properties, and application

Laura de Andrade Souza; Edson Luiz Francisquetti; Rafael Domingos Dalagnol; Celso Roman Junior; Maria Telma Gomes Schanz; Martin Edmund Maier; Cesar Liberato Petzhold

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A new oleic acid derivative plasticizer, epoxidized trimethylolpropane trioleate (EPO), has been synthesized and its application in PVC formulations compared with di(2-ethylhexyl) 1,2-cyclohexanoate (DOCH/DEHCH), a commercial phthalate-free plasticizer of petrochemical origin. EPO and their blends with DOCH were added to PVC resin (50 PHR) and the plasticized PVC has been characterized by thermal and mechanical measurements. EPO demonstrated good compatibility with the PVC resin improving the thermal stability and elongation at break. Due to EPO high molar mass, a slight increase in the glass transition temperature and hardness was observed as the content of EPO in the plasticizer blend increased. The results indicate that EPO is a potential plasticizer for PVC when pure and, by replacing 50% of DOCH, the PVC compound shows similar properties to pure DOCH, but better elongation at break and thermal stability.


plasticizers, PVC, renewable sources, epoxidized trimethylpropane trioleate, dioctyl cyclohexanoate


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