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Preparation and characterization of a low‐formaldehyde‐emission methylol urea/triethanolamine copolymer composite
Author(s) -
Barminas J. T.,
Osemeahon S. A.
Publication year - 2009
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.30289
Subject(s) - triethanolamine , copolymer , polyester , polymer chemistry , materials science , polymerization , condensation polymer , urea , composite number , maleic anhydride , urea formaldehyde , organic chemistry , chemistry , polymer , composite material , adhesive , analytical chemistry (journal) , layer (electronics)
A low‐formaldehyde‐emission methylol urea/triethanolamine composite was synthesized through in situ esterification of formaldehyde with triethanolamine and subsequent copolymerization of the synthesized polyester with methylol urea. The effects of the addition of triethanolamine to the polymerization process on some physical properties of the synthesized copolymer were evaluated. The copolymer was characterized with IR spectroscopy and macrophase‐separation techniques. At a given triethanolamine concentration, the composite exhibited macrophase‐separation behavior between that of pure methylol urea and pure polyester. IR spectra showed the presence of the polyester moiety in the composite. The values of the moisture uptake, formaldehyde emission, melting point, and elongation at break of the copolymer were within acceptable levels required in the coating industry. Therefore, the methylol urea/polyester copolymer resin could have potential as a binder in the coating industry. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010