| 摘要 |
<p>Polyether amides are produced by reacting a polyethylene glycol diamine and a first dicarboxylic acid or an ester thereof, with a polyoxyalkylene diamine of a molecular weight of at least 500 and a second dicarboxylic acid or an ester thereof, where the polyethylene glycol diamine has the formula NH2-(CH2CH2O)x-CH2CH2-NH2, where x ranges from 2 to 6, and where the first and second dicarboxylic acid may be the same or different. The amides are useful in making polymers, including fibers, having unusually good water absorbancy properties.</p> |
