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Light scattering study of salt-free "polyelectrolyte behaviour" of monotelechelic ionomers in a polar solvent
Kupperblatt, Gary; Hara, Masanori; Vanhoorne, Pierre et al.
1996In Polymer, 37 (16), p. 3741-3744
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Keywords :
halatotelechelic polymer
Abstract :
[en] Salt-free polyelectrolyte behaviour which is typically observed at low polymer concentrations for polyelectrolyte aqueous solutions and random ionomer non-aqueous solutions (in polar solvents) (i.e., negative angular dependence of the reciprocal scattering in static light scattering and an appearance of the fast mode in dynamic light scattering) has been observed for monotelechelic ionomer solutions in a polar solvent. This indicates that only single charge (per chain) is sufficient to produce intermolecular electrostatic interactions, which are responsible for such characteristic behaviour. However, the 'characteristic' behaviour, which is typically observed at higher concentrations for polyelectrolyte and random ionomer solutions (i.e., large positive apparent radius of gyration in static scattering and appearance of the slow mode in addition to the fast mode in dynamic scattering) has not been observed to date for monotelechelic ionomer solutions. The absence of high-concentration characteristics for the monotelechelic ionomer solutions gives additional insight as to the nature and structure of 'heterogeneities' in salt-free polyelectrolyte solutions, which is still controversial.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Kupperblatt, Gary;  Rutgers University, New Jersey, USA > Department of Mechanics and Materials Science
Hara, Masanori;  Rutgers University, New Jersey, USA > Department of Mechanics and Materials Science
Vanhoorne, Pierre ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Light scattering study of salt-free "polyelectrolyte behaviour" of monotelechelic ionomers in a polar solvent
Publication date :
August 1996
Journal title :
Polymer
ISSN :
0032-3861
eISSN :
1873-2291
Publisher :
Elsevier Sci Ltd, Oxford, United Kingdom
Volume :
37
Issue :
16
Pages :
3741-3744
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
T he Petroleum Research Fund administered by the American Chemical Society
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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