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Crystallization kinetics of poly(ethylene oxide) confined in semicrystalline poly(vinylidene) fluoride

Journal Article · · Journal of Polymer Science. Part B, Polymer Physics
DOI:https://doi.org/10.1002/polb.24564· OSTI ID:1786582
 [1];  [2];  [1];  [3];  [4];  [3]
  1. Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, Camino de Vera s/n 46022 Valencia Spain
  2. Centro de Física, Universidade do Minho Braga 4710‐057 Portugal
  3. Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, Camino de Vera s/n 46022 Valencia Spain, Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER‐BBN) Valencia Spain
  4. BCMaterials, Parque Científico y Tecnológico de Bizkaia Derio 48160 Spain, IKERBASQUE, Basque Foundation for Science Bilbao 48013 Spain

ABSTRACT

Polymer blends based on poly(vinylidene fluoride) (PVDF) and poly(ethylene oxide) (PEO) have been prepared to analyze the crystallization kinetics of poly(ethylene oxide) confined in semicrystalline PVDF with different ratios of both polymers. Both blend components were dissolved in a common solvent, dimethyl formamide. Blend films were obtained by casting from the solution at 70 °C. Thus, PVDF crystals are formed by crystallization from the solution while PEO (which is in the liquid state during the whole process) is confined between PVDF crystallites. The kinetics of crystallization of the confined PEO phase was studied by isothermal and nonisothermal experiments. Fitting of Avrami model to the experimental DSC traces allows a quantitative comparison of the influence of the PVDF/PEO ratio in the blend on the crystallization behavior. The effect of melting and further recrystallization of the PVDF matrix on PEO confinement is also studied. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018 , 56 , 588–597

Sponsoring Organization:
USDOE
OSTI ID:
1786582
Journal Information:
Journal of Polymer Science. Part B, Polymer Physics, Journal Name: Journal of Polymer Science. Part B, Polymer Physics Journal Issue: 7 Vol. 56; ISSN 0887-6266
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English

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