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Morphological Properties of Hyperbranched Compound Containing Pyrrole Units

Published online by Cambridge University Press:  16 March 2015

Lioudmila Fomina
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U. A. Postal 70-360. Delegación Coyoacán. C.P. 04510. México D.F., México.
Jorge Godínez Sánchez
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U. A. Postal 70-360. Delegación Coyoacán. C.P. 04510. México D.F., México.
José A. Olivares
Affiliation:
Centro de Investigación en Polímeros, COMEX, Marcos Achar Lobaton No 2 Tepexpan, 55885, México.
Fabio L. Cuppo Sant´Anna
Affiliation:
Centro de Investigación en Polímeros, COMEX, Marcos Achar Lobaton No 2 Tepexpan, 55885, México.
Luis E. Sansores
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U. A. Postal 70-360. Delegación Coyoacán. C.P. 04510. México D.F., México.
Roberto Salcedo
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U. A. Postal 70-360. Delegación Coyoacán. C.P. 04510. México D.F., México.
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Abstract

Hyperbranched structures containing pyrrole units were obtained from ortho-, meta- and para-diaminodiphenyldiacetylenes as AB2 type monomers by one-step polymerization.

The para-hyperbranched compound was observed by optical microscopy and scanning electron microscopy.

Microscopy studies identify two phases. The first is the insoluble one which gives origin to flake type structures. The second is acetone soluble phase, which generated crystalline structure manifesting in optic anisotropy and rhomboids and triangles dendrimeric structures.

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Articles
Copyright
Copyright © Materials Research Society 2015 

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References

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