Phase Behavior of Poly(ethylene oxide) in Room Temperature Ionic Liquids: A Molecular Simulation and Deep Neural Network Study

2020 ◽  
Vol 124 (41) ◽  
pp. 9230-9238
Author(s):  
Hyuntae Jung ◽  
Arun Yethiraj
Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2963
Author(s):  
Suhaila Idayu Abdul Halim ◽  
Chin Han Chan ◽  
Jörg Kressler

The studies of phase behavior, dielectric relaxation, and other properties of poly(ethylene oxide) (PEO)/poly(methyl acrylate) (PMA) blends with the addition of lithium perchlorate (LiClO4) were done for different blend compositions. Samples were prepared by a solution casting technique. The binary PEO/PMA blends exhibit a single and compositional-dependent glass transition temperature (Tg), which is also true for ternary mixtures of PEO/PMA/LiClO4 when PEO was in excess with low content of salt. These may indicate miscibility of the constituents for the molten systems and amorphous domains of the systems at room temperature from the macroscopic point of view. Subsequently, the morphology of PEO/PMA blends with or without salt are correlated to the phase behavior of the systems. Phase morphology and molecular interaction of polymer chains by salt ions of the systems may rule the dielectric or electric relaxation at room temperature, which was estimated using electrochemical impedance spectroscopy (EIS). The frequency-dependent impedance spectra are of interest for the elucidation of polarization and relaxation of the charged entities for the systems. Relaxation can be noted only when a sufficient amount of salt is added into the systems.


Soft Matter ◽  
2017 ◽  
Vol 13 (46) ◽  
pp. 8672-8677 ◽  
Author(s):  
Yavuz Caydamli ◽  
Erol Yildirim ◽  
Jialong Shen ◽  
Xiaomeng Fang ◽  
Melissa A. Pasquinelli ◽  
...  

Nanocomposites prepared by incorporating polyhedral oligomeric silsesquioxane (POSS) into polymer matrices afford versatile hybrid materials but are exquisitely sensitive to even POSS monofunctionalization.


1993 ◽  
Vol 48 (3) ◽  
pp. 547-556 ◽  
Author(s):  
Guo Qipeng ◽  
Sun Keshi ◽  
Fang Tianru ◽  
Qi Yuchen ◽  
Feng Zhiliu

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