Complicated phase behavior and ionic conductivities of PVP-co-PMMA-based polymer electrolytes

Preparation and performance analysis of PE-supported P(AN-co-MMA) gel polymer electrolyte for lithium ion battery application

“…In GPEs, polymer matrixes are required for the immobilization of electrolytes. Among the polymer matrixes that are promising for the application in GPE, polyacrylonitrile (PAN) [2], poly(vinylidene fluoride) (PVDF) [3][4][5], poly(methyl methacrylate) (PMMA) [6], and poly(ethylene oxide) (PEO) [7] based polymers have been most extensively studied. The GPEs with these matrixes exhibit highly ionic conductivity, usually over 10 −3 S cm −1 at room temperature.…”

Miscibility and tack of blends of poly (vinylpyrrolidone)/acrylic pressure-sensitive adhesive

“…The reason why the carbonyl stretching band of neat PVP obviously broadens and shifts to a lower frequency is because of the strong self-association of PVP molecules (i.e., through dipole-dipole interactions as shown in Scheme 3). Thus there are very few truly ''free'' carbonyl units in the PVP; the carbonyl band observed in the FTIR spectrum of PVP actually consists of bands from a large number of associated species (multimers) [24].…”

“…This finding implies that the strength of the dipole-dipole interactions of the PVP units was reduced or that they were eliminated completely, as a result of the presence of acrylic comonomers that act as inert diluent and disturb the mesomerism that usually occurs in amides [24,29].…”

Morphology and thermal behaviour of SAN/EPDM blends

“…There are two distinct glass transitions for all blends, in our case the lower glass transition is due to the EPDM phase (-50°C) and the higher glass transition (109°C) is due to the SAN phase (21)(22)(23). Table 2 contains the T g values for EPDM, SAN and their blends with and without HIPS as a compatibilizer.…”