Kinetics of vinyl chloride suspension polymerization with novel peroxide as initiator
The kinetics of vinyl chloride suspension polymerization with a novel peroxide, 3-hydroxy-1,1-dimethylbutyl peroxyneodecanoate (Lup 610) as a single initiator at 51.3℃ and 56.8℃ and t-butyl peroxyneoheptanoate (Lup 701) or t-hexyl peroxyivalate (HPV) as a single initiator at 61.8℃, was studied .The initiation efficiency at each temperature was obtained by selecting the kinetic model value that best fitted the experimental value.The initiation efficiency of initiator Lup 610 was 0.80 at 51.3℃ and 0.75 at 56.8℃, that of initiator Lup 701 and HPV was 0.55 and 0.50 at 61.8℃, respectively.Then the kinetics of polymerization with these novel peroxides mixed with di-2-ethylhexyl peroxydicarbonate or t-butyl peroxyneodecanoate as initiators was also investigated.It was found that the experimental data were in good agreement with the model value.