Polymers Based on Methacrylate Bearing Coumarin Side Group: Synthesis via Free Radical Polymerization, Monomer Reactivity Ratios, Dielectric Behavior, and Thermal Stabilities

Table 3

Results of the free radical copolymerization of MAOC and BMA.

Deney	𝐹=𝑀1/𝑀2	𝑓=𝑚1/𝑚2	𝐺=𝐹(𝑓−1)/𝑓	𝐻=𝐹2/𝑓	𝜂=𝐺/(𝛼+𝐻)	𝜉=𝐻/(𝛼+𝐻)
1	0,23	0,17	−1,12	0,31	−0,57	0,16
2	0,58	0,33	−1,17	1,01	−0,44	0,38
3	0,78	0,53	−0,69	1,14	−0,25	0,41
4	1,00	0,72	−0,38	1,38	−0,13	0,46
5	3,34	1,50	1,11	7,43	0,12	0,82
6	5,25	3,16	3,58	8,72	0,35	0,84

𝑀₁: mole fraction of PMA in feed; 𝑀₂: mole fraction of MMA in feed; 𝑚₁: mole fraction of PMA in copolymer; 𝑚₂: mole fraction of MMA in copolymer. (𝐻_min, 𝐻_max)^1/2 = 1,64; 𝐻_min: lowest value of H, 𝐻_max: highest value of H.