ISSN:
0003-3146
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The repetitive N-alkylation reaction, at first used by Marvel, turned out to be a very versatile method for the synthesis of polycations. Rembaum introduced the name “ionenes” for this type of polymers. In the first part of the lecture some examples of single-stranded ionenes are described. The second part shows how the repetitive N-alkylation can be used for the synthesis of spiro polymers. In these double-stranded polymers two spiro-conjugated rings of the main chain have a central quaternary nitrogen in common (spiro-ionenes or spiro-azonia polymers). Starting from tetrabromides (for instance 1,2,4,5 tetrabromomethylbenzene) and different cyclic diamines soluble polymers (with more or less stretched shape) with the typical properties of polyelectrolytes are obtained.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/apmc.1994.052230113
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