Orientational phase transitions in the hexagonal phase of a diblock copolymer melt under shear flow

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Volumn 61, Issue 4, 2000, Pages 4125-4132

  Morozov, A N ^a   Zvelindovsky, A V ^a   Fraaije, J G E M ^a  

^a UNIVERSITY OF GRONINGEN   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

BLOCK COPOLYMERS;

DIBLOCK COPOLYMER MELTS; HIGH SHEAR RATE; ORIENTATIONAL BEHAVIOR; ORIENTATIONAL ORDERINGS; ORIENTATIONAL PHASE TRANSITION; PARALLEL ORIENTATION; PERPENDICULAR ORIENTATION; STEADY SHEAR FLOW;

SHEAR FLOW;

EID: 0000095638     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.61.4125     Document Type: Article

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15. The only role of the dissipation in our model is to renormalize the shear rate (Formula presented) Since we neglected any alteration of the velocity profile in the sample and simply approximated (Formula presented) the existence of the potential (Formula presented) is not surprising. Moreover, (Formula presented) is a functional of the dissipative effects 1, so that only the number (Formula presented) enters the dynamic equations. Thus, even in this case the equations for the amplitudes (Formula presented) have a potential form. However, for the dissipative case it is much more difficult to speculate about physical meaning of (Formula presented)
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