Inclusion behavior between molecular nanotubes and linear polymer chains in aqueous solutions

被引:37
作者
Ikeda, E [1 ]
Okumura, Y [1 ]
Shimomura, T [1 ]
Ito, K [1 ]
Hayakawa, R [1 ]
机构
[1] Univ Tokyo, Grad Sch Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 113, Japan
关键词
D O I
10.1063/1.480978
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
The inclusion behavior between molecular nanotubes and linear polymer chains in aqueous solutions is experimentally investigated by measuring the optical absorption spectra of the solutions with iodine as a probe. It is found that the amount of polymer chains included into nanotubes increases with polymer length, which indicates a molecular recognition of the nanotube for the polymer length in the complex formation. Furthermore, the experimental results are compared with a theory based on the Flory-Huggins lattice model. They are in good agreement with each other and the inclusion energy between the molecular nanotube and the linear polymer chain is evaluated. (C) 2000 American Institute of Physics. [S0021-9606(00)70309-6].
引用
收藏
页码:4321 / 4325
页数:5
相关论文
共 16 条
[1]   Molecular dynamics of novel alpha-cyclodextrin adducts studied by C-13-NMR relaxation [J].
Ceccato, M ;
LoNostro, P ;
Rossi, C ;
Bonechi, C ;
Donati, A ;
Baglioni, P .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (26) :5094-5099
[2]  
Flory P. J., 1983, PRINCIPLES POLYM CHE
[3]   COMPLEX-FORMATION BETWEEN POLY(ETHYLENE GLYCOL) AND ALPHA-CYCLODEXTRIN [J].
HARADA, A ;
KAMACHI, M .
MACROMOLECULES, 1990, 23 (10) :2821-2823
[4]   SYNTHESIS OF A TUBULAR POLYMER FROM THREADED CYCLODEXTRINS [J].
HARADA, A ;
LI, J ;
KAMACHI, M .
NATURE, 1993, 364 (6437) :516-518
[5]   THE MOLECULAR NECKLACE - A ROTAXANE CONTAINING MANY THREADED ALPHA-CYCLODEXTRINS [J].
HARADA, A ;
LI, J ;
KAMACHI, M .
NATURE, 1992, 356 (6367) :325-327
[6]   HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].
IIJIMA, S .
NATURE, 1991, 354 (6348) :56-58
[7]  
Maeda M, 1983, NETSUSOKUTEI, V10, P103
[8]   TOPOGRAPHY OF CYCLODEXTRIN INCLUSION COMPLEXES .12. STRUCTURAL CHEMISTRY OF LINEAR ALPHA-CYCLODEXTRIN-POLYIODIDE COMPLEXES - X-RAY CRYSTAL-STRUCTURES OF (ALPHA-CYCLODEXTRIN)2.LII3.I2.8H2O AND (ALPHA-CYCLODEXTRIN)2.CD0.5.I5.27H2O - MODELS FOR THE BLUE AMYLOSE-IODINE COMPLEX [J].
NOLTEMEYER, M ;
SAENGER, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (08) :2710-2722
[9]   Inclusion-dissociation transition in the complex formation between molecular nanotubes and linear polymer chains in solutions [J].
Okumura, Y ;
Ito, K ;
Hayakawa, R .
PHYSICAL REVIEW LETTERS, 1998, 80 (22) :5003-5006
[10]  
OKUMURA Y, UNPUB