Structure of the catalytically active compound in caprolactam polyamidation activated by the phosphoric acid-polyethylene glycol system

Mizerovskii, L. N.; Silant'eva, V. G.; Bakina, L. A.; Bykov, A. N.

doi:10.1007/bf00548809

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“…Poly(oxyethylenephosphate) acts as a medium for ionic movement in the water obtained from condensation reaction. This complex further forms hydrogen bonding with CAP when added to CAP solution leaving free proton in the polymer matrix . This free proton diffuses through water molecule by breaking and forming hydrogen bond which is called as Grotthuss mechanism.…”

Section: Resultsmentioning

confidence: 99%

Ionic conductivity and dielectric studies of acid doped cellulose acetate propionate solid electrolyte for supercapacitor

2015

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Phosphoric acid doped cellulose acetate propionate (CAP) consisting of poly(ethylene glycol) (PEG) as plasticizer was investigated. Ionic conductivities and dielectric studies were carried at different temperature with varying concentration of H 3 PO 4 using AC impedance method. The highest conductivity was 8.1 3 10 24 S cm 21 at 343 K and a long tail was featured in dielectric studies indicating good capacitance nature of the electrolyte. Interactions between added constituents were observed in FTIR and differential scanning calorimetry studies. Thin and compact fabricated supercapacitor demonstrated specific capacitance of 64 F g 21 using cyclic voltammetry. Furthermore, the supercapacitor properties like AC impedance and charge-discharge were studied. Stability was up to 96% at 1000th cycle. POLYM. ENG. SCI., 56:196-203, 2016. V C 2015 Society of Plastics Engineers Preparation of Solid Polymer Electrolyte 0.1 wt% of PEG was dissolved by stirring in different concentration (0.01-0.05 wt%) of 1M H 3 PO 4 and stirred well to get a homogenous viscous solution. 1 wt% of CAP was dissolved in 1:1 acetone/water for 15 min at controlled temperature $258C. Subsequently, the prepared solutions were mixed to get a

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Section: Resultsmentioning

confidence: 99%