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Polyfunctional esterisocyanates. Useful monomers for the synthesis of ordered polymers
Author(s) -
Mormann Werner
Publication year - 1989
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19890250112
Subject(s) - monomer , lyotropic , polymer chemistry , polymer , trimethylsilyl , piperazine , regioselectivity , condensation polymer , polymerization , chemistry , polyamide , organic chemistry , liquid crystalline , catalysis
A number of mono‐ and difunctional esterisocyanates has been synthesised by the regioselective reaction of isocyanatocarboxylic acid chlorides with trimethylsilyl‐protected alcohols and phenols. The diesterdiisocyanates were reacted with short chain diols to sequential poly(diesterdiurethane)s and with piperazine to poly(diesterdiurea)s. The monoesterisocyanates were anionically polymerized to 1‐polyamides which show lyotropic liquid crystalline behaviour. The new products are characterized by spectroscopy, viscosimetry and thermal behaviour.