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Synthesis and studies of phosphorus‐containing polyurethane foams based on tetrakis(hydroxymethyl) phosphonium chloride derivatives
Author(s) -
Sivriev Hristo,
Borissov Georgij,
Zabski Leszek,
Walczyk Wladyslaw,
Jedlinski Zbigniew
Publication year - 1982
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.1982.070271105
Subject(s) - polyurethane , hydroxymethyl , flammability , fire retardant , materials science , thermal stability , polyol , chloride , phosphorus , polymer chemistry , aqueous solution , phosphonium , amine gas treating , chemical engineering , organic chemistry , chemistry , composite material , engineering , metallurgy
A phosphorus‐ and nitrogen‐containing polyl is prepared by condensing tetrakis(hydroxymethyl)phosphonium chloride with diethanol amine in aqueous medium. The newly synthesized polyol‐bis(hydroxymethyl)‐ N , N ‐bis(2‐hydroxyethyl)aminomethylphosphine oxide (AMPO) is used in the preparation of rigid polyurethane foams with a various phosphorus content. With the view to comparing their properties, polyurethane foams are also prepared on the basis of the commercially available flame retardant diethyl‐ N , N ‐bis(2‐hydroxyethyl)aminomethylphosphonate (Fyrol 6). The flammability, thermal stability, and thermoechanical properties of the polyurethane foams obtained are studied. A certain difference in the behavior of the two modified polyurethane foams is observed. The polyurethane foams with AMPO exhibit a slight increase in the resistance to combustion (oxygen index) and a noticeable improvement in the thermal and mechanical properties. These differences probably arise as a result of structural and functional differences between the two types of phosphorus‐containing flame retardants.