Study on Ring-Opening Copolymerization of Trioxymethylene and Second Monomer Initiated by Phosphotungstic Acid

Figure 4

DSC curve of the copolymer. (a) Changes in the dosage of DOX. (b) Changes in the dosage of D4. (c) Changes in the dosage of CHO. (d) Comparison of the second monomers (4 mol%).

(a)

(b)

(c)

(d)