biostudies-literatureUnknown10(25)Le Brouster RThe objective of this work is to understand the effect of a perfluorinated random copolymer added in a polystyrene (PS) matrix on the rheological properties during an injection molding process, as well as on the functional wettability of the final parts. A synthesized random perfluorinated copolymer, named POISE-a-20, was first physically blended with a PS matrix at a weight content of 2 wt % and processed on a lab scale using an injection molding machine. The rheological properties of the injection-molded parts were investigated using a plate-plate rheometer, and a specific behavior was observed, where the presence of POISE-a-20 led to an increase in viscosity at low shear rates and an enhancement of the shear-thinning behavior at high shear rates. In situ rheological measurements were thACS omega26567-26578https://www.ebi.ac.uk/biostudies/studies/S-EPMC12223801biostudies-literatureInfluence of the Addition of a Fluorinated Oligo-Polystyrene Additive on the Rheology and Hydrophobic Properties of PS Injection-Molded Parts.PMC12223801Marcilly BGiboz JMele PCarrier SLe Brouster RTenchine LfalseInfluence of the Addition of a Fluorinated Oligo-Polystyrene Additive on the Rheology and Hydrophobic Properties of PS Injection-Molded Parts.The objective of this work is to understand the effect of a perfluorinated random copolymer added in a polystyrene (PS) matrix on the rheological properties during an injection molding process, as well as on the functional wettability of the final parts. A synthesized random perfluorinated copolymer, named POISE-a-20, was first physically blended with a PS matrix at a weight content of 2 wt % and processed on a lab scale using an injection molding machine. The rheological properties of the injection-molded parts were investigated using a plate-plate rheometer, and a specific behavior was observed, where the presence of POISE-a-20 led to an increase in viscosity at low shear rates and an enhancement of the shear-thinning behavior at high shear rates. In situ rheological measurements were th2025-01-01T00:00:00Z2025 Jul2026-05-09T17:51:15.456Z2026-04-08T01:06:56.574ZS-EPMC122238014062093110.1021/acsomega.5c00592