Polyester of dimethyl 7‐(<i>N</i>‐pyrrolidinyl)‐2,7‐cycloheptadiene‐1,2‐dicarboxylate and its lithium triflate complex

Kavuklu, Özen; Güner, Ali̇; Tunoglu, Nazan

doi:10.1002/adv.2001

Cited by 3 publications

(4 citation statements)

References 17 publications

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“…Many of these investigations have focused on synthesis, conductivity, or ion transport. , Polymer electrolytes can be produced by dissolving polymer and salt and then evaporating the solvent. Selected examples include poly(ethylene oxide)/poly(vinyl chloride) blends, poly(vinylidene fluoride)/poly(vinyl alcohol) blends, polycarbonates, − polyesters, − and cellulose …”

Section: Introductionmentioning

confidence: 99%

Synthetic Design of Polyester Electrolytes Guided by Hydrophobicity Calculations

et al. 2016

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Partition coefficients (LogP) help to quantify hydrophobicity, which can be used to guide the design of polymer electrolytes with targeted properties. Thus, this study combined synthetic experiments and molecular modeling to produce polyester electrolytes that solubilize lithium salts. These polyester electrolytes were derived from natural sources and polymerized with different ratios of polyols (diglycerol, glycerol, and diethylene glycol) and citric acid in the presence of lithium salts (LiTf and LiTFSI). The Fisher esterification produced homogeneous, cross-linked films with high optical transparency, whereas the lithium salts increased glass transition temperatures. The LogP values of monomers and the resulting polyesters were predicted using cheminformatics tools and indicate changing diglycerol to glycerol or diethylene glycol alters the hydrophobicity. Comparison of different molecular modeling methods with predicted LogP values demonstrate that LogP values are a reliable means of tailoring physical and chemical properties of these polymer electrolytes. Additionally, LogP values greatly benefit from being extremely less expensive from a computational standpoint as well as more convenient for calculating precursory quantitative information.

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Section: Introductionmentioning

confidence: 99%

Synthetic Design of Polyester Electrolytes Guided by Hydrophobicity Calculations

et al. 2016

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“…One of the reasons advanced in the literature to explain the relative order of thermal stability of complexes formed with different ligands is that thermal stability increases along with an increase in π‐electron delocalization, molecule size, and the nature and number of the rings that are formed. The relative order of stability observed for the present complexes might well be explained in these terms 9,11,12…”

Section: Resultsmentioning

confidence: 65%

“…In both complexes, weight loss in the first stage of decomposition was about 7.5%, which may be due to the removal of coordinated water molecules (near to 100°C). The main decomposition temperatures for the PLLA–Cu and the PLLA–Cr complexes at around 98% weight loss were higher with the concentration of the metals 11–14…”

Section: Resultsmentioning

confidence: 98%

“…The formation of these complexes leads to fluctuations in typical parameters such as viscosity and the Huggins and Kraemer constants due to conformational changes experienced by certain macromolecules with donor or acceptor groups in the presence of strongly loaded metallic ions. Furthermore, such a sharp decrease in viscosity is usually associated with polymer–metal systems that go on to form intramolecular complexes 8–11…”

Section: Resultsmentioning

confidence: 99%

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Poly(l‐lactide) and Its Cu(II) and Cr(III) Complexes

et al. 2012

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The behavior of poly(L-lactide) (PLLA) complexes containing copper and chromium both in solution and in solid state was investigated by using viscometry, spectroscopy, thermogravimetry, and differential scanning calorimetry. The formation of these complexes leads to fluctuations in typical parameters such as viscosity and the Huggins and Kraemer constants due to conformational changes experienced by certain macromolecules with donor or acceptor groups in the presence of strongly loaded metallic ions. Crystallization temperatures fell considerably as the metallic complexes were formed; in other words, crystallization and its starting temperature were both reduced, although the complexes exhibited greater thermal stability. This affected the degradation characteristics of PLLA-metal complexes. The stretching vibrations of the ester group shifted to a lower frequency, which indicates the involvement of C O

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