ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A model for describing the structural features such as degree of polymerization, size, and shape of polymeric phthalocyanines 2, 4, 6 is described. Analytical methods such as IR, titration of carboxylic end groups, and elemental analysis are used in the structure investigation. The results demonstrate that for polymeric phthalocyanines 2 with cyano end groups, prepared from 1,2,4,5-benzenetetracarbonitrile (1), the number of macrocycles (n) in the polymer is not higher than 7-9, and that linear polymers as well as polymers with two rows are possible. Polymers 6, prepared from bridged diphthalonitriles 5, are considerably larger showing a more two-dimensional structure. For polymeric phthalocyanines 4 with carboxylic end groups, prepared from 1,2,4,5-benzenetetracarboxylic acid derivatives 3, a linear structure with n = 4-9 is favoured. Literature results are examined in the light of the described model.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1989.021900709
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