| 摘要 |
<p>Polyalkylenepolyamines and gelatins are crosslinked in a non-anhydrous environment to yield water-swellable, essentially water-insoluble gels and foams. The polyalkylenepolyamine is contacted with a polyisocyanate at a pH between 5 and 8 and subjected to a high rate of agitation. The gelatin is contacted with a polyisocyanate at a pH between 6 and 8 and subjected to a high rate of agitation. The process of this invention can be employed to immobilize proteins, enzyme , antibodies, etc.</p> |
