Premium
Polyurethanes with Pendant Hydroxyl Groups: Synthesis and Characterization
Author(s) -
Ubaghs Luc,
Fricke Nicole,
Keul Helmut,
Höcker Hartwig
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300064
Subject(s) - glass transition , methylene , polymer chemistry , polymer , monomer , condensation polymer , ethylene carbonate , chloroformate , hydroxyl value , amorphous solid , ethylene glycol , chemistry , materials science , polyurethane , organic chemistry , polyol , electrode , electrolyte
Communication: Phenoxycarbonyloxymethyl ethylene carbonate 4 was synthesized from glycerol carbonate and phenyl chloroformate. Polyurethanes with pendant hydroxyl groups were obtained from polycondensation reactions of this AA* monomer with diamines. These polymers contain primary as well as secondary hydroxyl groups. The obtained polyurethanes are amorphous materials. The glass transition temperature decreases with increasing number of methylene groups between the urethane groups.As the number of methylene groups increases between the urethane groups, the glass transition temperature of the polymer decreases.