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 [J].
BELLISSENTFUNEL, MC ;
TEIXEIRA, J ;
BOSIO, L ;
DORE, J ;
CHIEUX, P .
EUROPHYSICS LETTERS, 1986, 2 (03) :241-245
[2]   PHASE-BEHAVIOR OF POLYOXYETHYLENE SURFACTANTS WITH WATER - MESOPHASE STRUCTURES AND PARTIAL MISCIBILITY (CLOUD POINTS) [J].
MITCHELL, DJ ;
TIDDY, GJT ;
WARING, L ;
BOSTOCK, T ;
MCDONALD, MP .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 :975-1000
[3]   THE INTERATOMIC STRUCTURE OF WATER AT SUPERCRITICAL TEMPERATURES [J].
POSTORINO, P ;
TROMP, RH ;
RICCI, MA ;
SOPER, AK ;
NEILSON, GW .
NATURE, 1993, 366 (6456) :668-670
[4]   STRUCTURE OF MOLECULAR LIQUIDS BY NEUTRON-SCATTERING [J].
POWLES, JG .
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 [J].
STEYTLER, DC ;
DORE, JC ;
WRIGHT, CJ .
MOLECULAR PHYSICS, 1983, 48 (05) :1031-1051
[7]   NEUTRON-DIFFRACTION STUDIES OF WATER IN POROUS SILICA .2. TEMPERATURE-VARIATION IN THE SUPER-COOLED REGIME [J].
STEYTLER, DC ;
DORE, JC .
MOLECULAR PHYSICS, 1985, 56 (05) :1001-1015
[8]   WATER-STRUCTURE IN AQUEOUS-SOLUTIONS OF TETRAMETHYLAMMONIUM CHLORIDE [J].
TURNER, J ;
SOPER, AK ;
FINNEY, JL .
MOLECULAR PHYSICS, 1992, 77 (03) :411-429