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Hyperbranched aramids by direct polyamidation of two reactant systems: Synthesis and properties
Author(s) -
Russo Saverio,
Boulares Alya,
Da Rin Andrea,
Mariani Alberto,
Cosulich Maria Elisabetta
Publication year - 1999
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19991430123
Subject(s) - aramid , monomer , reagent , solubility , materials science , fraction (chemistry) , chemical engineering , polymer chemistry , polymer science , chemistry , composite material , organic chemistry , polymer , fiber , engineering
Some A 2 + B 3 and A 3 + B 3 reagent pairs have been used for the direct polyamidation reaction leading, besides the network formation, to hyperbranched aramid structures. Depending on the chosen experimental conditions, variable amounts of a sol fraction having close similarities with the hyperbranched aramid structures derived from the polyamidation of AB 2 monomers, have indeed been obtained. Solubility of the sol fraction in various organic solvents, as well as its thermal properties and its capability of enzyme fixation, have been determined for the various systems under investigation. Future developments are envisaged.