Structural modification of water in the confined layer of a lamellar liquid crystal

被引:13
作者
Baker, JM
Dore, JC
Seddon, JM
Soper, AK
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CHEM,LONDON SW7 2AZ,ENGLAND
[2] RUTHERFORD APPLETON LAB,DIV NEUTRON,DIDCOT OX11 0QX,OXON,ENGLAND
关键词
D O I
10.1016/0009-2614(96)00494-0
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 measurements have been made on water confined in the lamellar phase (L(alpha)) of the amphiphile tetraethylene glycol n-dodecyl ether (C(12)E(4)) Using a first-order difference procedure, the structure factor for a planar water layer of 58 Angstrom thickness confined between surfactant sheets has been obtained. Comparison with bulk water at the same temperature shows that there is enhanced hydrogen-bonding in the water layer and modification of the inter-molecular structure over the intermediate range (2.5-8 Angstrom). These results suggest that the connectivity of the H-bonded network is influenced by the geometrical confinement imposed by the surfactant interface.
引用
收藏
页码:649 / 652
页数:4
相关论文
共 8 条
  • [1] SPATIAL CORRELATIONS IN DEEPLY SUPERCOOLED WATER
    BELLISSENTFUNEL, MC
    TEIXEIRA, J
    BOSIO, L
    DORE, J
    CHIEUX, P
    [J]. EUROPHYSICS LETTERS, 1986, 2 (03): : 241 - 245
  • [2] PHASE-BEHAVIOR OF POLYOXYETHYLENE SURFACTANTS WITH WATER - MESOPHASE STRUCTURES AND PARTIAL MISCIBILITY (CLOUD POINTS)
    MITCHELL, DJ
    TIDDY, GJT
    WARING, L
    BOSTOCK, T
    MCDONALD, MP
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 : 975 - 1000
  • [3] THE INTERATOMIC STRUCTURE OF WATER AT SUPERCRITICAL TEMPERATURES
    POSTORINO, P
    TROMP, RH
    RICCI, MA
    SOPER, AK
    NEILSON, GW
    [J]. NATURE, 1993, 366 (6456) : 668 - 670
  • [4] STRUCTURE OF MOLECULAR LIQUIDS BY NEUTRON-SCATTERING
    POWLES, JG
    [J]. ADVANCES IN PHYSICS, 1973, 22 (01) : 1 - 56
  • [5] SOPER AK, 1989, RAL89046
  • [6] NEUTRON-DIFFRACTION STUDIES OF WATER IN MESO-PORES AND MICRO-PORES
    STEYTLER, DC
    DORE, JC
    WRIGHT, CJ
    [J]. MOLECULAR PHYSICS, 1983, 48 (05) : 1031 - 1051
  • [7] NEUTRON-DIFFRACTION STUDIES OF WATER IN POROUS SILICA .2. TEMPERATURE-VARIATION IN THE SUPER-COOLED REGIME
    STEYTLER, DC
    DORE, JC
    [J]. MOLECULAR PHYSICS, 1985, 56 (05) : 1001 - 1015
  • [8] WATER-STRUCTURE IN AQUEOUS-SOLUTIONS OF TETRAMETHYLAMMONIUM CHLORIDE
    TURNER, J
    SOPER, AK
    FINNEY, JL
    [J]. MOLECULAR PHYSICS, 1992, 77 (03) : 411 - 429