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NMR diffusometry and conductometry study of the host-guest association between beta-cyclodextrin and dodecane 1,12-bis(trimethylammonium bromide)

Cabaleiro-Lago, Celia LU ; Nilsson, Markus LU ; Valente, Artur J. M. ; Bonini, Massimo and Söderman, Olle LU (2006) In Journal of Colloid and Interface Science 300(2). p.782-787
Abstract
Surfactants form association complexes with cyclodextrins. In the present investigation we have used NMR-diffusometry and electrical conductivity to follow the interactions which take place between ss-cyclodextrm and a bolaform surfactant: dodecane 1, 1 2-bis(trimethylammonium bromide). Both H-1 NMR self-diffusion and conductometry data indicate the formation of a 1: 1 inclusion complex. Assuming this stoichiometry, it was possible to calculate the association constant; from the analysis of the self-diffusion coefficients of free ss-cyclodextrin and the bolaform surfactant an association constant K = 3 x 10(3) Mb(-1) was obtained while the analysis of conductivity data gave a comparable value of K = 2.5 x 10(3) M-1. (c) 2006 Elsevier Inc.... (More)
Surfactants form association complexes with cyclodextrins. In the present investigation we have used NMR-diffusometry and electrical conductivity to follow the interactions which take place between ss-cyclodextrm and a bolaform surfactant: dodecane 1, 1 2-bis(trimethylammonium bromide). Both H-1 NMR self-diffusion and conductometry data indicate the formation of a 1: 1 inclusion complex. Assuming this stoichiometry, it was possible to calculate the association constant; from the analysis of the self-diffusion coefficients of free ss-cyclodextrin and the bolaform surfactant an association constant K = 3 x 10(3) Mb(-1) was obtained while the analysis of conductivity data gave a comparable value of K = 2.5 x 10(3) M-1. (c) 2006 Elsevier Inc. All rights reserved. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
conductivity, association constants, self-diffusion, bolaform surfactant, cyclodextrin
in
Journal of Colloid and Interface Science
volume
300
issue
2
pages
782 - 787
publisher
Elsevier
external identifiers
  • wos:000239291000041
  • scopus:33745854806
ISSN
1095-7103
DOI
10.1016/j.jcis.2006.04.016
language
English
LU publication?
yes
id
2c8e58b6-d82a-4fbd-b011-951aa96b5eb7 (old id 399501)
date added to LUP
2016-04-01 12:07:31
date last changed
2022-04-21 02:47:41
@article{2c8e58b6-d82a-4fbd-b011-951aa96b5eb7,
  abstract     = {{Surfactants form association complexes with cyclodextrins. In the present investigation we have used NMR-diffusometry and electrical conductivity to follow the interactions which take place between ss-cyclodextrm and a bolaform surfactant: dodecane 1, 1 2-bis(trimethylammonium bromide). Both H-1 NMR self-diffusion and conductometry data indicate the formation of a 1: 1 inclusion complex. Assuming this stoichiometry, it was possible to calculate the association constant; from the analysis of the self-diffusion coefficients of free ss-cyclodextrin and the bolaform surfactant an association constant K = 3 x 10(3) Mb(-1) was obtained while the analysis of conductivity data gave a comparable value of K = 2.5 x 10(3) M-1. (c) 2006 Elsevier Inc. All rights reserved.}},
  author       = {{Cabaleiro-Lago, Celia and Nilsson, Markus and Valente, Artur J. M. and Bonini, Massimo and Söderman, Olle}},
  issn         = {{1095-7103}},
  keywords     = {{conductivity; association constants; self-diffusion; bolaform surfactant; cyclodextrin}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{782--787}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Colloid and Interface Science}},
  title        = {{NMR diffusometry and conductometry study of the host-guest association between beta-cyclodextrin and dodecane 1,12-bis(trimethylammonium bromide)}},
  url          = {{http://dx.doi.org/10.1016/j.jcis.2006.04.016}},
  doi          = {{10.1016/j.jcis.2006.04.016}},
  volume       = {{300}},
  year         = {{2006}},
}