The Wigner method of transforming quantum-mechanical operators into their phase-space analogs is reviewed with applications to scattering theory, as well as to descriptions of the equilibrium and dynamical states of many-particle systems. Inclusion of exchange effects is discussed.
A general solution is presented for the kinetics of an A–A plus B–C step polymerization. B and C are the same type of functional group but with different reactivities (k1 and k2, respectively) toward A groups. The decay of the concentrations of B, C, and A groups and the increase in the degree of polymerization with time are described for various values of the ratio k2/k1.
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