Phenol → Formaldehyde

Participants

Reaction Steps

This example demonstrates that phenol, when combined with an aldehyde, gels a polyacrylamide relatively quickly at 210° F. A solution of Phillips HE-B® polyacrylamide (5000 ppm), phenol (1000 ppm), and formaldehyde (1900 ppm) was prepared in synthetic sea water (pH unadjusted). When aged overnight (15 hours) at 210° F., a tough, deformable, elastic gel was formed. This gel showed no syneresis or other evidence of degradation after 26 weeks of storage of 210° F.

Provenance & Evidence