PCSP:: a computer program to predict and analyze the packing in crystalline polymers

被引:22
作者
León, S [1 ]
Navas, JJ [1 ]
Alemán, C [1 ]
机构
[1] Univ Politecn Catalunya, ETS Engn Ind Barcelona, Dept Engn Quim, E-08028 Barcelona, Spain
关键词
PCSP; crystalline polymers; orthorhombic polyethylene;
D O I
10.1016/S0032-3861(99)00089-0
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A computational strategy based on force-field calculations was developed to predict and analyze the packing in crystalline polymers. The strategy, which was incorporated in a computer program called Prediction of the Crystal Structure of Polymers (PCSP), takes advantage of the information provided by X-ray and/or electron diffraction. The program evaluates all the modes of packing for a given lattice dimensions, being able to predict the lowest energy one. The ability of the method to provide reliable results was proved by analyzing the crystal structure of four different polymers. Further, an insight on the applicability of the PCSP program to estimate the mechanical properties of polymers was provided by computing the elastic constants of the orthorhombic polyethylene. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:7351 / 7358
页数:8
相关论文
共 31 条
[1]   COMPARISON OF NDDO AND QUASI-AB INITIO APPROACHES TO COMPUTE SEMIEMPIRICAL MOLECULAR ELECTROSTATIC POTENTIALS [J].
ALHAMBRA, C ;
LUQUE, FJ ;
OROZCO, M .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1994, 15 (01) :12-22
[2]   LOW-TEMPERATURE CRYSTAL-STRUCTURE OF POLYETHYLENE - RESULTS FROM A NEUTRON-DIFFRACTION STUDY AND FROM POTENTIAL-ENERGY CALCULATIONS [J].
AVITABILE, G ;
NAPOLITANO, R ;
PIROZZI, B ;
ROUSE, KD ;
THOMAS, MW ;
WILLIS, BTM .
JOURNAL OF POLYMER SCIENCE PART C-POLYMER LETTERS, 1975, 13 (06) :351-355
[3]   CONFORMATION OF THE HELICAL POLYAMIDE POLY(ALPHA-ISOBUTYL L-ASPARTATE) [J].
BELLA, J ;
ALEMAN, C ;
FERNANDEZSANTIN, JM ;
ALEGRE, C ;
SUBIRANA, JA .
MACROMOLECULES, 1992, 25 (20) :5225-5230
[4]   ELECTRON-DIFFRACTION OF SYNTHETIC-POLYMERS - THE MODEL-COMPOUND APPROACH TO POLYMER STRUCTURE [J].
BRISSE, F .
JOURNAL OF ELECTRON MICROSCOPY TECHNIQUE, 1989, 11 (04) :272-279
[5]   The crystal structure of long-chain normal paraffin hydrocarbons. The "shape" of the > CH2 group. [J].
Bunn, CW .
TRANSACTIONS OF THE FARADAY SOCIETY, 1939, 35 (01) :0482-0490
[6]   ELASTIC-MODULI OF ULTRADRAWN POLYETHYLENE [J].
CHOY, CL ;
LEUNG, WP .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1985, 23 (09) :1759-1780
[7]  
DAUBENY RD, 1954, PROC R SOC LON SER-A, V226, P531
[8]   HELICAL CONFORMATIONS IN A POLYAMIDE OF THE NYLON-3 FAMILY [J].
FERNANDEZSANTIN, JM ;
MUNOZGUERRA, S ;
RODRIGUEZGALAN, A ;
AYMAMI, J ;
LLOVERAS, J ;
SUBIRANA, JA ;
GIRALT, E ;
PTAK, M .
MACROMOLECULES, 1987, 20 (01) :62-68
[9]   GENERATION OF POSSIBLE CRYSTAL-STRUCTURES FROM THE MOLECULAR-STRUCTURE FOR LOW-POLARITY ORGANIC-COMPOUNDS [J].
GAVEZZOTTI, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (12) :4622-4629
[10]   PREDICTION OF POSSIBLE CRYSTAL-STRUCTURES FOR C-CONTAINING, H-CONTAINING, N-CONTAINING, O-CONTAINING AND F-CONTAINING ORGANIC-COMPOUNDS [J].
HOLDEN, JR ;
DU, ZY ;
AMMON, HL .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1993, 14 (04) :422-437