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Reaction pathway and product analysis for hydroxyalkylation of urea and N , N ‐bis(2‐hydroxypropyl)urea with propylene carbonate
Author(s) -
ZarzykaNiemiec Iwona
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28945
Subject(s) - urea , propylene carbonate , thermal stability , chemistry , carbamate , polymer chemistry , carbonate , dimethyl carbonate , organic chemistry , nuclear chemistry , methanol , electrode , electrochemistry
The hydroxyalkylation of urea and N , N ′‐bis(2‐hydroxypropyl)urea (BHPU) with propylene carbonate (PC) was studied by spectral analysis of oligomeric products using 1 H‐NMR, IR and MALDI ToF methods. During the hydroxypropylation the carbonate groups in a product are partially preserved. Additionally, the hydroxypropyl groups of urea derivatives undergo partially dimerization to give carbamate groups. The obtained derivatives posses enhanced thermal stability. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008