Reaction Model LAFO Propagation with fragmentation.
nucleation stage:
A12 + A1 <--> A13
A13 + A1 <--> A14
.................
A23 +A1 <--> A24
Fragmentaion stage:
A24 --> 2* A12
Lateral association stage: From now we will call A24 as L1
L1 + L1 <-> L2
L2 + L1 <-> L3
L3 + L1 <-> L4
Elongation stage:
L4 + M <-> F
F + M <-> F