2019
DOI: 10.1134/s0021364019200104
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Relaxation of the Induced Orientational Order in the Isotropic Phase of a Nematic Polymer

Abstract: Orientational dynamics in the isotropic phase of a comb-shaped nematic polymer with mesogenic and functional side groups was studied using the Kerr effect and dielectric spectroscopy. For the first time, it was found that in a mesogenic polymer, in contrast to lowmolecular-weight mesogens, the relaxation of the electric birefringence of a melt above the temperature of the nematic-isotropic phase transition can be presented by a sum of several exponential processes, two of which play a decisive role. These main… Show more

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Cited by 1 publication
(2 citation statements)
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“…Our idea is inspired by various old models of high temperature symmetry breaking suggested in Refs. [16][17][18][19][20][21]. An interesting possibility could be a phase transition mechanism from an electroweak conserving and B−L broken vacuum (G SM ) to an electroweak breaking and B−L preserving vacuum G =(SU (3) c ×U (1) em ×U (1) B−L ).…”
Section: Galaxymentioning
confidence: 99%
See 1 more Smart Citation
“…Our idea is inspired by various old models of high temperature symmetry breaking suggested in Refs. [16][17][18][19][20][21]. An interesting possibility could be a phase transition mechanism from an electroweak conserving and B−L broken vacuum (G SM ) to an electroweak breaking and B−L preserving vacuum G =(SU (3) c ×U (1) em ×U (1) B−L ).…”
Section: Galaxymentioning
confidence: 99%
“…In fact, the generation of n−n is necessarily synchronized with a Stueckelberg mechanism of U (1) B−L . In fact, all the e −S E2 factors have a structure e −S E2 =e −V Π /gs+i r cr ar , (16) where V Π is the volume of Π-cycles wrapped by an Ebrane on the internal CY ; a r are RR axions and c r are E-brane couplings to them, and g s is the string-coupling constant associated with the vacuum expectation value of the dilaton field (g s = e φ ). Equation ( 17) is not invariant under RR axion shifts, i.e.…”
Section: Exotic Instantonsmentioning
confidence: 99%