Methacrylic acid and 2-vinyl pyridine are copolymerized together at 70ᵒC, where r1 and r2 have values 0.58 and 1.55, respectively. Which of the following component is present in more quantity in the copolymer formed in earlier stage?
Methacrylic acid and 2-vinyl pyridine are copolymerized together at 70ᵒC, where r1 and r2 have values 0.58 and 1.55, respectively. Which of the following component is present in more quantity in the copolymer formed in earlier stage? Correct Answer 2-vinyl pyridine
For the reaction of copolymerization, k1,1=0.58k1,2 and k2,2=1.55k2,1. In both the cases, 2-vinyl pyridine is consumed at a faster rate than methacrylate by each of the radicals. So 2-vinyl pyridine is present in more quantity in the copolymer formed at an earlier stage.