ArticleACS omega2025
Elastomeric PU-Pluronic F‑127 Thin Films: Catalyst and Solvent Effects on Microstructure, Mechanical Properties, and Biocompatibility.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
While Pluronic F-127 is widely used to create hydrogels, this study investigates its novel application as a semicrystalline soft-segment within elastomeric polyurethane thin films. A series of elastomeric polyurethane-Pluronic F-127 (PU-PF) films was synthesized to investigate the influence of catalyst and solvent selection on the polymer thin film properties. A facile, low-hazard synthesis route using lactic acid as a catalyst and butyl acetate as a solvent (LA_BA) was identified as the optimal synthesis condition. Comprehensive characterization (X-ray diffraction (XRD), atomic force microscopy (AFM), Raman, and differential scanning calorimetry (DSC)) revealed the LA_BA film is a complex, microphase-separated copolymer with 29.29% quasi-crystallinity. The nanostructure consists of a soft, ordered PrePU hard-segment network (modulus ∼20-30 kPa) embedded with stiffer and dendritic Pluronic F-127 domains (∼150-350 kPa). This model, supported by broad XRD peaks and the absence of a melting endotherm (
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