MOLECULAR-DYNAMICS SIMULATION OF THE CRYSTALLINE PHASE OF POLY(ETHYLENE OXIDE)-SODIUM IODIDE, PEO(3)NAI

被引:40
作者
NEYERTZ, S [1 ]
BROWN, D [1 ]
THOMAS, JO [1 ]
机构
[1] UNIV UPPSALA,INST CHEM,S-75121 UPPSALA,SWEDEN
关键词
MOLECULAR DYNAMICS; SIMULATION; POLY(ETHYLENE OXIDE); SODIUM IODIDE; CRYSTAL STRUCTURE;
D O I
10.1016/0013-4686(95)91266-B
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The polymer-polymer interaction potential used in an earlier reported MD simulation of crystalline PEO [Neyertz, Brown and Thomas, J. Chem. Phys., 101, 10064 (1994)] is here transferred to the crystalline phase of poly(ethylene oxide)-sodium iodide, PEO(3)NaI. An appropriate set of ion-ion and ion-polymer interactions are also introduced. Force-field and other computational parameters are optimized to reproduce satisfactorily the behaviour of crystalline PEO(3)NaI. From the MD simulations performed at 300 K, results are presented for the pressure tenser, mean-square displacements, distributions of torsion angles and radial distribution functions. These are compared with the X-ray determined PEO(3)NaI and pure PEO structures.
引用
收藏
页码:2063 / 2069
页数:7
相关论文
共 26 条
[1]  
Allen M.P., 1987, COMPUTER SIMULATION
[2]  
Armand M. B., 1979, Fast Ion Transport in Solids. Electrodes and Electrolytes, P131
[3]  
Armand M. B., 1987, POLYM ELECTROLYTE RE, P1
[4]   SHELL-MODEL MOLECULAR-DYNAMICS CALCULATIONS OF THE RAMAN-SPECTRA OF MOLTEN NAI [J].
BOARD, JA ;
ELLIOTT, RJ .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (13) :2427-2440
[5]   A GENERAL PRESSURE TENSOR CALCULATION FOR MOLECULAR-DYNAMICS SIMULATIONS [J].
BROWN, D ;
NEYERTZ, S .
MOLECULAR PHYSICS, 1995, 84 (03) :577-595
[6]   STRUCTURES OF 2 CRYSTAL FORMS OF POLY(ETHYLENE OXIDE)-SODIUM THIOCYANATE COMPLEX WITH MOLAR RATIOS OF 3-1 AND 1-1 [J].
CHATANI, Y ;
FUJII, Y ;
TAKAYANAGI, T ;
HONMA, A .
POLYMER, 1990, 31 (12) :2238-2244
[7]   CRYSTAL-STRUCTURE OF POLY(ETHYLENE OXIDE)-SODIUM IODIDE COMPLEX [J].
CHATANI, Y ;
OKAMURA, S .
POLYMER, 1987, 28 (11) :1815-1820
[8]   MOLECULAR-DYNAMICS STUDIES OF MOLTEN NAI .1. QUASI-ELASTIC NEUTRON-SCATTERING [J].
DIXON, M .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1983, 47 (05) :509-530
[9]   MOLECULAR-DYNAMICS STUDIES OF MOLTEN NAI .2. MASS-DENSITY, CHARGE-DENSITY AND NUMBER-DENSITY FLUCTUATIONS [J].
DIXON, M .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1983, 47 (05) :531-554
[10]   MOLECULAR-DYNAMICS STUDIES OF MOLTEN NAI .3. LONGITUDINAL AND TRANSVERSE CURRENTS [J].
DIXON, M .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1983, 48 (01) :13-29