Alternating copolymers of isobutylene and acrylic ester by complexed copolymerization

Mashita, K.; Hirooka, Masaaki

doi:10.1016/0032-3861(95)94348-w

Cited by 9 publications

(9 citation statements)

References 19 publications

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“…In these experiments, 0.1 mL of freshly distilled ethyl acrylate was added to the reaction mixture at the outset. On the basis of NMR, the copolymer typically contained 50% IB by weight and is distinct from the alternating EA/ 1 copolymer reported by Mashita at al . Its detailed structure is under examination.…”

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confidence: 84%

LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

et al. 2009

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confidence: 84%

LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

et al. 2009

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“…Here, ionic concentration was calculated from the density values of [Li(G4) 1 ][TFSA] (1.400 gcm À3 ) [29] and the polymers, 1.182, 1.064, and 1.119 gcm À3 for PMMA [54], PBA [55], and PEO [56] respectively, assuming volumetric additivity. …”

Section: Ionic Transport Propertiesmentioning

confidence: 99%

Li+ Ion Transport in Polymer Electrolytes Based on a Glyme-Li Salt Solvate Ionic Liquid

Kido

Ueno

Iwata

et al. 2015

Electrochimica Acta

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Keywords: solvate ionic liquid polymer electrolyte polymer-in-salt ionicity glyme A B S T R A C T Polymer electrolytes (PEs) have served as the focus of intensive research as new ion-conducting materials, especially for lithium battery applications. A new strategy to develop fast lithium-conducting PEs is reported here. The thermal, ionic transport, and electrochemical properties of polymer solutions in a glyme-Li salt solvate ionic liquid, [Li(G4) 1 ][TFSA], composed of an equimolar mixture of lithium bis (trifluoromethanesulfonyl) amide (Li[TFSA]) and tetraglyme (G4), were characterized. Poly(ethylene oxide) (PEO), poly(methyl methacrylate) (PMMA), and poly(butyl acrylate) (PBA) were combined with [Li(G4) 1 ][TFSA] in order to explore the effects of polymer structure on the properties. The self-diffusion coefficient ratio of the glyme and Li + ions (D G /D Li ) was investigated to evaluate the stability of the complex (solvate) cations. The D G /D Li values suggested that the [Li(G4) 1 ] + complex cations underwent a ligand exchange reaction between G4 and PEO in the PEO-based solution, whereas the cations remained stable (D G /D Li = 1) in the PMMA-and PBA-based solutions. The robustness of the [Li(G4) 1 ] + complex cations in the PMMA-and PBA-based solutions was reflected in high weight-loss temperature, greater Li transference number, and high oxidative stability.Owing to the lower glass transition temperature and low affinity towards Li + ions, the PBA-based solutions yielded superior lithium transport properties (ionic conductivity of 10 À4 $10 À3 Scm À1 and Li transference number as high as 0.5) among the investigated polymer solutions.

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“…Experimental refractive indices were obtained at temperature T 1 , n D (exptl). Experimental densities, at T 2 , d ( T 2 , exptl), were taken from refs and − . Corrected densities, d ( T 1 )= d ( T 2 , exptl) × d ( T 1 ,QSPR)/ d ( T 2 ,QSPR), with, d ( T 1 ,QSPR), d ( T 2 ,QSPR), were estimated according to ref .…”

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Polymer Optical Constants from Long-Range Corrected DFT Calculations

Maekawa

Moorthi

2016

J. Phys. Chem. B

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A methodology to calculate refractive indices of plastics based on the Lorentz-Lorenz equation has been proposed. The polarizability of the nonconjugated polymer repeat units is predicted using the long-range corrected functionals. The end effect corrections in repeat unit models are essential to achieve accuracy similar to that observed for molecular liquids (ca. 1% in mean absolute deviation). The functionals with 100% Hartree-Fock (HF) exchange in the long-range limit perform best for aromatic and other hydrogen-deficient compounds; the Coulomb-attenuated hybrid exchange-correlation functional (CAM-B3LYP) performs very well for hydrogen-rich (usually, fully saturated) compounds. Exceptionally good agreement is observed for the sets of wavelength-dependent refractive index data for polystyrene, poly(methyl methacrylate), and for poly(perfluoro-4-vinyloxy-1-butene) (CYTOP), for which the root-mean-square deviations are 0.004, 0.002, and 0.004, respectively.

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Alternating copolymers of isobutylene and acrylic ester by complexed copolymerization

Cited by 9 publications

References 19 publications

LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

Li+ Ion Transport in Polymer Electrolytes Based on a Glyme-Li Salt Solvate Ionic Liquid

Polymer Optical Constants from Long-Range Corrected DFT Calculations

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Alternating copolymers of isobutylene and acrylic ester by complexed copolymerization

Cited by 9 publications

References 19 publications

LiCB11(CH3)12-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

LiCB11(CH3)12-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

Li+ Ion Transport in Polymer Electrolytes Based on a Glyme-Li Salt Solvate Ionic Liquid

Polymer Optical Constants from Long-Range Corrected DFT Calculations

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LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer

LiCB₁₁(CH₃)₁₂-Catalyzed Radical Polymerization of Isobutylene: Highly Branched Polyisobutylene and an Isobutylene−Ethyl Acrylate Copolymer