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- W3001887789 abstract "One of the main issues in preparing polymer-based nanocomposites with effective properties is to achieve a good dispersion of the nanoparticles into the matrix. Chemical interfacial modifications by specific coupling agents represents a good way to reach this objective. Actually, time consuming compatibilization procedures strongly compromise the sustainability of these strategies. In this study, the role of particles' architectures in their dispersion into a poly-lactic acid matrix and their subsequent influences on physical-chemical properties of the obtained nanocomposites were investigated. Two kinds of silica nanoparticles, smooth and wrinkled, with different surface areas (≈30 and ≈600 m2/g respectively) were synthesized through a modified Stöber method and used, without any chemical surface pre-treatments, as fillers to produce poly-lactic acid based nanocomposites. The key role played by wrinkled texture in modifying the physical interaction at the polymer-filler interface and in driving composite properties, was investigated and reflected in the final bulk properties. Detailed investigations revealed the presence of wrinkled nanoparticles, leading to (i) an enormous increase of the chain relaxation time, by almost 30 times compared to the neat PLA matrix; (ii) intensification of the shear-thinning behavior at low shear-rates; and (iii) slightly slower thermal degradation of polylactic acid." @default.
- W3001887789 created "2020-01-30" @default.
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- W3001887789 date "2020-01-25" @default.
- W3001887789 modified "2023-09-24" @default.
- W3001887789 title "Improving Interaction at Polymer–Filler Interface: The Efficacy of Wrinkle Texture" @default.
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- W3001887789 doi "https://doi.org/10.3390/nano10020208" @default.
- W3001887789 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7074972" @default.
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