Dynamics of probe particles in polymer solutions and gels

被引:41
|
作者
Shibayama, M [1 ]
Isaka, Y
Shiwa, Y
机构
[1] Kyoto Inst Technol, Dept Polymer Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan
[2] Kyoto Inst Technol, Div Nat Sci, Sakyo Ku, Kyoto 6068585, Japan
基金
美国国家科学基金会;
关键词
D O I
10.1021/ma990414g
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The dynamics of polystyrene probe particles in poly(N-isopropylacrylamide) solutions and in gels has been investigated by dynamic light scattering. Two modes, i.e., the translational diffusion of probe particles and the cooperative diffusion of polymer chains, were successfully decomposed from CONTIN analysis. The characteristic decay time of probe particles in polymer solutions became larger by a few orders of magnitude than in water. On the other hand, in the case of polymer gels, the translational diffusion of probe particles was substantially frozen, and only the cooperative diffusion of polymer networks was observed. This probe scattering method clearly demonstrates the difference in the dynamics of polymer solutions and gels. The nonergodic nature of polymer networks is also discussed with the characteristic decay time distribution function.
引用
收藏
页码:7086 / 7092
页数:7
相关论文
共 50 条
  • [31] Dynamic responses in polymer clay gels and solutions
    Schmidt, G
    Loizou, E
    Butler, P
    Porcar, L
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2005, 229 : U712 - U712
  • [32] GELS FROM DILUTE POLYMER SURFACTANT SOLUTIONS
    LEUNG, PS
    GODDARD, ED
    LANGMUIR, 1991, 7 (03) : 608 - 609
  • [33] Viscoelastic scaling of colloidal gels in polymer solutions
    Pashkovski, EE
    Masters, JG
    Mehreteab, A
    LANGMUIR, 2003, 19 (09) : 3589 - 3595
  • [34] New class of dynamics in concentrated polymer gels
    Svanberg, C.
    Uematsu, T.
    Berntsen, P.
    Jacobsson, P.
    JOURNAL OF CHEMICAL PHYSICS, 2007, 126 (05):
  • [35] Dynamics of active swelling in contractile polymer gels
    Curatolo, Michele
    Nardinocchi, Paola
    Teresi, Luciano
    JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2020, 135
  • [36] Relaxation Dynamics of the Normal Stress of Polymer Gels
    Yamamoto, Tetsuya
    Masubuchi, Yuichi
    Doi, Masao
    MACROMOLECULES, 2017, 50 (13) : 5208 - 5213
  • [37] Polymer network dynamics in shrinking patterns of gels
    Tokita, M
    Miyamoto, K
    Komai, T
    JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (04): : 1647 - 1650
  • [38] Origins of the speckles and slow dynamics of polymer gels
    Ngai, T
    Wu, C
    Chen, Y
    JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (18): : 5532 - 5540
  • [39] DYNAMICS OF NEAR-CRITICAL POLYMER GELS
    COLBY, RH
    GILLMOR, JR
    RUBINSTEIN, M
    PHYSICAL REVIEW E, 1993, 48 (05): : 3712 - 3716
  • [40] Polymer Probe Diffusion in Globular Protein Gels and Aggregate Suspensions
    Inthavong, Walailuk
    Nicolai, Taco
    Chassenieux, Christophe
    JOURNAL OF PHYSICAL CHEMISTRY B, 2018, 122 (33): : 8075 - 8081