Kinetic analysis of thermal degradation of poly(ethylene glycol) and poly(ethylene oxide)s of different molecular weight

2010 ◽  
Vol 498 (1-2) ◽  
pp. 71-80 ◽  
Author(s):  
Nataša Stipanelov Vrandečić ◽  
Matko Erceg ◽  
Miće Jakić ◽  
Ivka Klarić
Keyword(s):  
Molecular Weight ◽  
Thermal Degradation ◽  
Ethylene Oxide ◽  
Ethylene Glycol ◽  
Kinetic Analysis ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Different Molecular Weight

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.

Different approaches to the kinetic analysis of thermal degradation of poly(ethylene oxide)

2017 ◽  
Vol 131 (1) ◽  
pp. 325-334 ◽  
Author(s):  
Matko Erceg ◽  
Irena Krešić ◽  
Nataša Stipanelov Vrandečić ◽  
Miće Jakić
Keyword(s):  
Thermal Degradation ◽  
Ethylene Oxide ◽  
Kinetic Analysis ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Miscibility of polystyrene with poly(ethylene oxide) and poly(ethylene glycol)

1998 ◽  
Vol 69 (8) ◽  
pp. 1471-1482 ◽  
Author(s):  
Abdel-Azim A. Abdel-Azim ◽  
Aiman M. Atta ◽  
Medhat S. Farahat ◽  
Wagdy Y. Boutros
Keyword(s):  
Ethylene Oxide ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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