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Aromatic polyureas and polythioureas by a new polycondensation reaction using ethylene chlorophosphite as reagent
Authors:Constantin I. Chiriac
Affiliation:(1) "ldquo"P. Poni"rdquo" Institute of Macromolecular Chemistry, RO-6600 Jassy, Romania
Abstract:Summary Aromatic polyureas and polythioureas are prepared from aromatic diamines and carbon dioxide or carbon disulfide, by a new direct polycondensation reaction with, ethylene chlorophosphite as reagent in pyridine as solvent and acceptor for hydrochloric.
Keywords:
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