Advances in Liquid Crystals by Jagdish K. Vij

By Jagdish K. Vij

Prigogine and Rice's hugely acclaimed sequence, Advances in Chemical Physics, offers a discussion board for serious, authoritative experiences of present issues in each sector of chemical physics. Edited through J.K. Vij, this quantity makes a speciality of contemporary advances in liquid crystals with major, updated chapters authored via the world over famous researchers within the box.

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The primary kinetic data were taken from Ref.

Thus, before the thermodynamic equilibrium in cyclics is reached – that is, during the kinetically controlled period – the concentration of either the cyclics or linear macromolecules may exceed those at thermodynamic equilibrium. The polymerization of ethylene oxide (EO) provides an instructive example. Here, the anionic process is practically devoid of macrocyclics formation, whereas the cationic process proceeds with significant amounts of cyclic oligomers that are formed in addition to the linear polymer.

M1m1* ⎤ ⎞ ⎦ eq ⎟ ⎜⎣ ⎜ ⎡. . 21a) −1 ⎡. . -m2m1* ⎤ ⎞ ⎣ ⎦ eq ⎟ < ⎡. . -m1m1* ⎤ ⎟ ⎠ ⎣ ⎦ eq copo ⎛ ⎡. . -m1m1* ⎤ ⎞ ⎦ eq ⎟ ⎜⎣ ⎜ ⎡. . homo. The equilibrium concentration of comonomer M1 (or M2) in copolymerization is lower than that in homopolymerization because the cross-propagation reduces the concentration of the …–m1m1* (or …–m2m2*) centers. g. 13. e. when [M1]0 < 1/K11 and [M2]0 < 1/K22). The necessary conditions are: K12K21 > K11 K22 and [M1]0[M2]0 > 1/K12K21. Thus, the formation of heterodiads should be privileged.

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