Neutron-scattering determination of the Li+ environment in an aqueous poly(ethylene oxide) solution

被引：12

作者：

Annis, BK ^{[1
]}

Badyal, YS ^{[1
]}

Simonson, JM ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 08期

关键词：

D O I：

10.1021/jp0308155

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Neutron diffraction with isotopic substitution was used to assess the relative solvation interactions near lithium ions in a D2O/deuterated poly(ethylene oxide) (PEO) mixed solvent near 25degreesC. Results for local structure near Li+ indicate a hydration structure very similar to that observed previously for Li+ in D2O solution with no added polymer. For the mixed solvent ratio used, PEO does not compete effectively with D2O for solvation sites near Li+. These results contribute to our understanding of reactivity and transport of ionic species in mixed aqueous polymer systems.

引用

页码：2554 / 2556

页数：3

共 13 条

[1] A study of the influence of LiI on the chain conformations of poly(ethylene oxide) in the melt by small-angle neutron scattering and molecular dynamics simulations [J].

Annis, BK ;

Kim, MH ;

Wignall, GD ;

Borodin, O ;

Smith, GD .

MACROMOLECULES, 2000, 33 (20) :7544-7548

[2]

[Anonymous], WATER COMPREHENSIVE

[3] THE WATER-STRUCTURE AROUND THE CHLORIDE-ION IN AQUEOUS POLYETHYLENE OXIDE SOLUTIONS [J].

BARNES, AC ;

ENDERBY, JE ;

BREEN, J ;

LEYTE, JC .

CHEMICAL PHYSICS LETTERS, 1987, 142 (05) :405-408

[4] DISTRIBUTION OF WATER AROUND POLY(ETHYLENE OXIDE) - A NEUTRON-DIFFRACTION STUDY [J].

BIEZE, TWN ;

BARNES, AC ;

HUIGE, CJM ;

ENDERBY, JE ;

LEYTE, JC .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (26) :6568-6576

[5]

HANNON AC, 1990, IOP C SERIES, V107

[6] THE ANALYSIS OF LIQUID STRUCTURE DATA FROM TIME-OF-FLIGHT NEUTRON DIFFRACTOMETRY [J].

HOWE, MA ;

MCGREEVY, RL ;

HOWELLS, WS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (22) :3433-3451

[7] Li+ hydration in concentrated aqueous solution [J].

Howell, I ;

Neilson, GW .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (25) :4455-4463

[8] Cation environment in molten lithium iodide doped poly(ethylene oxide) [J].

Londono, JD ;

Annis, BK ;

Habenschuss, A ;

Borodin, O ;

Smith, GD ;

Turner, JZ ;

Soper, AK .

MACROMOLECULES, 1997, 30 (23) :7151-7157

[9] Lithium environment in PEO-LiClO4 polymer electrolyte [J].

Mao, G ;

Saboungi, ML ;

Price, DL ;

Badyal, YS ;

Fischer, HE .

EUROPHYSICS LETTERS, 2001, 54 (03) :347-353

[10] HYDRATION OF THE ND-3+ ION IN NEODYMIUM CHLORIDE SOLUTIONS DETERMINED BY NEUTRON-DIFFRACTION [J].

NARTEN, AH ;

HAHN, RL .

JOURNAL OF PHYSICAL CHEMISTRY, 1983, 87 (17) :3193-3197

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