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

2017 ◽  
Vol 56 (7) ◽  
pp. 588-597 ◽  
Author(s):  
Maria Noel Tamaño-Machiavello ◽  
Carlos Miguel Costa ◽  
Francisco José Romero-Colomer ◽  
José María Meseguer Dueñas ◽  
Senentxu Lanceros-Mendez ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Crystallization Kinetics ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Kinetics Of

scholarly journals Isothermal Crystallization Kinetics of Poly(ethylene oxide)/Poly(ethylene glycol)-g-silica Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 648
Author(s):  
Xiangning Wen ◽  
Yunlan Su ◽  
Shaofan Li ◽  
Weilong Ju ◽  
Dujin Wang
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Crystallization Kinetics ◽  
Isothermal Crystallization ◽  
Crystallization Rate ◽  
Poly Ethylene Glycol ◽  
Isothermal Crystallization Kinetics ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Kinetics Of

In this work, the crystallization kinetics of poly(ethylene oxide) (PEO) matrix included with poly(ethylene glycol) (PEG) grafted silica (PEG-g-SiO2) nanoparticles and bare SiO2 were systematically investigated by differential scanning calorimetry (DSC) and polarized light optical microscopy (PLOM) method. PEG-g-SiO2 can significantly increase the crystallinity and crystallization temperature of PEO matrix under the non-isothermal crystallization process. Pronounced effects of PEG-g-SiO2 on the crystalline morphology and crystallization rate of PEO were further characterized by employing spherulitic morphological observation and isothermal crystallization kinetics analysis. In contrast to the bare SiO2, PEG-g-SiO2 can be well dispersed in PEO matrix at low P/N (P: Molecular weight of matrix chains, N: Molecular weight of grafted chains), which is a key factor to enhance the primary nucleation rate. In particular, we found that the addition of PEG-g-SiO2 slows the spherulitic growth fronts compared to the neat PEO. It is speculated that the interfacial structure of the grafted PEG plays a key role in the formation of nuclei sites, thus ultimately determines the crystallization behavior of PEO PNCs and enhances the overall crystallization rate of the PEO nanocomposites.

Air-operating polypyrrole actuators based on poly(vinylidene fluoride) membranes filled with poly(ethylene oxide) electrolytes

2017 ◽  
Vol 25 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Dae Seok Song ◽  
Hwa-Yeon Cho ◽  
Bye-Ri Yoon ◽  
Jae Young Jho ◽  
Jong Hyuk Park
Keyword(s):  
Ethylene Oxide ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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