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

Table 3

Cationic copolymerization of TOX and the second monomer.

Second monomer	Feeding (mol%)	Copolymer (mol%)
DOX	2	0.33
D4	2	0.16
CHO	2	0.60
DOX	4	1.60
D4	4	0.31
CHO	4	2.14

The polymerization temperature is 80°C.