Title Time-dependent behavior in analyte-, temperature-, and shear-sensitive Pluronic PE9400/water systems
Authors Calero, N. , SANTOS GARCÍA, JENIFER, Echevarria, C. , Munoz, J. , Cidade, M. T.
External publication Si
Means Colloid Polym. Sci.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 2
JCR Impact 1.90600
Publication date 01/09/2018
ISI 000441189300011
DOI 10.1007/s00396-018-4370-3
Abstract Pluronic PE9400/water binary systems at different concentrations were characterized by means of rheological and microstructural techniques. Temperature ramps revealed a structural transition defined by three zones, which determine time-dependent behaviors. Thus, non-time-dependent, antithixotropic, and thixotropic behaviors were observed depending on Pluronic\'s concentration and temperature. These phenomena were analyzed resorting to rheological tools, namely hysteresis loops and transient tests, and supported by Cryo-SEM. The results obtained demonstrated the shear-sensitive character of these systems. All properties presented by these systems make them adequate and interesting for many applications such as injectable systems for tissue repair.
Keywords Pluronic PE9400; Stimuli-sensitive hydrogels; Temperature ramp; Start-up at inception shear tests; Time-dependent behavior; Shear-induced structures
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