ENHANCEMENT OF INHOMOGENEITIES IN GELS UPON SWELLING AND STRETCHING

被引：25
作者：
BASTIDE, J
MENDES, E
BOUE, F
BUZIER, M
LINDNER, P
机构：
[1] CENS,LLB,F-91191 GIF SUR YVETTE,FRANCE
[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
来源：
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1990年 / 40卷
关键词：
D O I：
10.1002/masy.19900400110
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this paper, it is shown how a percolation process can be used to describe the inhomogeneities of polymer concentration, appearing in gels prepared by random crosslinking of a semi-dilute solution, and how they are modified by swelling or stretching of the network. Neutron scattering experimental data are compared to the predictions of this model in the isotropic and anisotropic cases. A good agreement is found. In particular, "abnormal" butterfly patterns in the iso-intensity curves have been detected, as expected from the model.
引用
收藏
页码：81 / 99
页数：19
相关论文
共 32 条
  • [1] [Anonymous], 1979, SCALING CONCEPTS POL
  • [2] SELF-DIFFUSION OF POLYSTYRENE CHAINS IN NETWORKS
    ANTONIETTI, M
    SILLESCU, H
    [J]. MACROMOLECULES, 1985, 18 (06) : 1162 - 1166
  • [3] BAREA JL, 1988, POLYM MOTIONS DENSE, P86
  • [4] SCATTERING BY DEFORMED SWOLLEN GELS - BUTTERFLY ISOINTENSITY PATTERNS
    BASTIDE, J
    LEIBLER, L
    PROST, J
    [J]. MACROMOLECULES, 1990, 23 (06) : 1821 - 1825
  • [5] SOME COMMENTS ON THE SWELLING OF POLYMERIC NETWORKS IN RELATION TO THEIR STRUCTURE
    BASTIDE, J
    PICOT, C
    CANDAU, S
    [J]. JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1981, B19 (01): : 13 - 34
  • [6] LARGE-SCALE HETEROGENEITIES IN RANDOMLY CROSS-LINKED NETWORKS
    BASTIDE, J
    LEIBLER, L
    [J]. MACROMOLECULES, 1988, 21 (08) : 2647 - 2649
  • [7] BASTIDE J, 1988, POLYM MOTION DENSE S, P112
  • [8] BASTIDE J, 1988, MOL BASIS POLYM NETW, P48
  • [9] Boue F, 1987, PROG COLLOID POLYM S, V75, P150, DOI 10.1007/BF01188369
  • [10] BOUE F, 1989, MOL BASIS POLYM NETW, P49
1234