Formaldehyde → Formaldehyde;phenol

Participants

Reaction Steps

Using the procedure described in Example 7-A, 3000 grams (31.88 moles) of phenol was reacted with 1655.96 grams (20.4 moles) of formalin (37% aqueous formaldehyde) using 15.0 grams (0.167 mole) of oxalic acid. The solid resin obtained had a Mettler softening point of 92.7, and a melt viscosity of 380 cps at 150° C. By GPC analysis, the wt. avg. M.W. was 1,168, no. avg. M.W. 753, with a polydispersity of 1.55. The resin contained 16.67% 2-functional product. The weight ratio of 2-functional to 3-functional components was 1.24:1.

Provenance & Evidence