MOLECULAR-WEIGHT DISTRIBUTION IN LIVING POLYMERIZATION PROCEEDING WITH RESHUFFLING OF POLYMER SEGMENTS DUE TO CHAIN TRANSFER TO POLYMER WITH CHAIN SCISSION, 1 - DETERMINATION OF K(P) K(TR) RATIO FROM (DP)OVER-BAR(W)/(DP)OVER-BAR(N) DATA - IDEAL REPRODUCTION OF POLYMER-CHAIN ACTIVITIES/

The molecular weight distribution (MWD) curves for polymerization syst ems with chain transfer to polymer leading to reshuffling of polymer s egments (and broadening of the MWD), but not changing chain functional ities, were simulated by the Monte Carlo method. The bimodality observ ed in some distributions was explained by different distribution funct ions of chains which did not undergo reshuffling and of those which un derwent the chain transfer reaction. Using this observation, a numeric al integration method for computing (DP)over-bar(w)/<(DP)over-bar>(n), (and the MWD curves) in the systems under consideration was devised. Plots relating (DP)over-bar(w)/(DP)over-bar(n) to monomer conversion a nd k(tr)/k(p), are presented and a method of determination of k(tr)/k( p), from the (DP)over-bar(w)/(DP)over-bar(n), data is proposed.