ORBi: Broze Guy - Halato-telechelic polymers. IV - Synthesis and dilute-solution behavior

Reference : Halato-telechelic polymers. IV - Synthesis and dilute-solution behavior


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/16712

Title :	Halato-telechelic polymers. IV - Synthesis and dilute-solution behavior
Language :	English
Author, co-author :	Broze, Guy [University of Liège (ULg) > Department of Chemistry > Laboratory of Macromolecular Chemistry and Organic Catalysis > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Laboratory of Macromolecular Chemistry and Organic Catalysis > >]
	Teyssié, Philippe [ > > ]
Publication date :	1982
Journal title :	Macromolecules
Publisher :	American Chemical Society
Volume :	15
Issue/season :	3
Pages :	920-927
Audience :	International
ISSN :	0024-9297
City :	Washington
Country :	DC
Keywords :	[en] halatotelechelic polymer
Abstract :	[en] Halato-telechelic polymers (HTP) result from the complete ionization of both ends of telechelic prepolymers. Their behavior in nonpolar solvents is characterized by a very abrupt increase of viscosity at increasing concentration, so that gel formation is noted at concentrations as low as 1.5 gdL-'. The nature of the ion pairs, polarity of the medium, and temperature influence significantly the gel formation and prove its electrostatic origin. The depressive effect of any polar additive on the gelation requires drastic conditions in the synthesis of reproducible materials. In this respect, an efficient synthetic pathway has been proposed. The influence of molecular weight and end-to-end distance of the prepolymer shows the determinant role played by the polymeric backbone on the ion aggregation process.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Unibra, Belgium ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/16712
DOI :	10.1021/ma00231a044
Other URL :	http://pubs.acs.org/doi/pdf/10.1021/ma00231a044

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