RT Journal Article
T1 Non-isothermal crystallization kinetics and morphology of poly(3-hydroxybutyrate)/pluronic blends
A1 Ambrosi, Moira
A1 Raudino, Martina
A1 Diañez Amores, Isabel
A1 Martinez García, Inmaculada
AB Poly(3-hydroxybutyrate), PHB, was mixed with pluronic F68 or F127 to obtain polymer blends with increased hydrophilicity and thus suitable for biomedical applications. Blend films were obtained by thermomolding keeping the pluronic content ≤17 wt% to avoid immiscibility. The non-isothermal crystallization kinetics of the blends was investigated by both differential scanning calorimetry (DSC) and rheology. PHB and pluronics were found to be miscible in the melt with both pluronics acting as diluent. Polarized optical microscopy (POM) and X-ray scattering (SAXS, WAXS) revealed that blending increased the overall crystallinity, promoting crystal ordering through the formation of more resolved, ring-banded spherulites. However, the different diffusion rate of pluronic F68 and F127 led to a different segregation extent of pluronic in the extralamellar domains with different final morphological homogeneity. The mechanical properties of the blends intimately correlated with the structure at the nano and microscale
PB Elsevier
SN 0014-3057
SN 1873-1945 (electrónico)
YR 2019
FD 2019-08
LK https://hdl.handle.net/10272/25285
UL https://hdl.handle.net/10272/25285
LA eng
NO Ambrosi, M., Raudino, M., Diañez, I., & Martínez, I. (2019). Non-isothermal crystallization kinetics and morphology of poly(3-hydroxybutyrate)/pluronic blends. In European Polymer Journal (Vol. 120, p. 109189). Elsevier BV. https://doi.org/10.1016/j.eurpolymj.2019.08.016
NO The authors would like to acknowledge the Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR, Rome), the Erasmus + Programme, the Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), and the Chemical Process and Product Technology Research Center (Pro2TecS) of the University of Huelva (Huelva, Spain) for financial support.
DS Repositorio Institucional de la Universidad de Huelva
RD 15 jun 2026