Answered You can hire a professional tutor to get the answer.
1. In a batch polymerization reaction of styrene (with the concentration of 2 M) in 2 liter cyclohexane solvent. The polymerization is initiated by
1. In a batch polymerization reaction of styrene (with the concentration of 2 M) in 2 liter cyclohexane solvent. The polymerization is initiated by the thermal decomposition of BPO initiator (with the concentration of2 x 10-3M) at 75 °C.
(b) How long will it take to achieve 50 % monomer conversion?
( kp=1 x 10^3 liter/mole-sec, kt= 7.0 X 10^7 liter/mole-sec, f = 0.7 and the half-life time of the initiator at 75 °C is 4 hours and 85 °C is 1.5 hours).
(c) How much polymer (g) is obtained after achieving 50 % monomer conversion?
If the above polymerization reaction (at 75 °C) is carried out in a continuous reaction process with constant monomer and initiator concentration, 2 and 2 x 10^-3M, respectively.
(a) What is the concentration of propagating site [M*] at the steady state condition.
(b) What are the rates of initiation, propagation, and termination (Ri, Rp and Rt)?
(c) How long will it take to prepare 1.04 Kg of polystyrene?
(d) What is the average polymer molecular weight?
(e) If the polymerization temperature is changed to 85 °C, what is the time saving in producing 1.04 Kg polymer and average molecular weight of polymer?
