4.
CH2=CH-Cl = clorura de vinil
miu = 62,5 g/mol
n = miu(polimer) / miu(monomer)
=> n = 18000 / 62,5 = 288
=> n = 30000/62,5 = 480
=> n : [288 , 480]
5.
CH2=CH2 = etena
miu = 28 g/mol
-[-CH2-CH2-]-n = polietena
n = 400
miu(polimer) = miu(monomer)xn
= 400x28 = 11200
n = 2800
miu(polimer) = miu(monomer)xn
= 2800x28 = 78400
=> miu(polimer) : [11200 , 78400]
6.
-[-CF2-CF2-]n- = politetrafluoroetena
miu = 62n g/mol
%C = 12x2nx100/62n = 38,71%
%F = 100-38,71 = 61,29%
