Preparation and properties of polyurethane foams from hydroxypropoxy derivatives of urea and isocyanates
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AbstractThe products of hydroxyalkylation of N,N’-bis(2-hydroxypropyl)urea (BHPU) with large molar excess of propylene carbonate (PC) posses enhanced thermal stability. These products and 4,4’-diphenylmethane diisocyanate were used as substrates for obtaining rigid polyurethane foams, which had high thermal stability and low water uptake.
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2018 ◽
Vol 54
(4)
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pp. 719-741
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Keyword(s):
2015 ◽
Vol 54
(12)
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pp. 1280-1288
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2010 ◽
Vol 2010
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pp. 1-9
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