Effects of strong anchoring on the dynamic moduli of heterogeneous nematic polymers

Rheologica Acta

Volumn 47, Issue 2, 2008, Pages 223-236

  Choate, Eric P ^a   Cui, Zhenlu ^b   Forest, M Gregory ^c  

^a UNIVERSITY OF SOUTH CAROLINA   (United States)

^b FAYETTEVILLE STATE UNIVERSITY   (United States)

^c University of North Carolina at Chapel Hill   (United States)

Author keywords

Linear viscoelasticity; Nematic liquid crystal polymers; Strong anchoring

Indexed keywords

ANISOTROPY; ELASTIC MODULI; HYDRODYNAMICS; MATHEMATICAL MODELS; NEMATIC LIQUID CRYSTALS; POLYMERS; SCALING LAWS; VISCOELASTICITY;

EID: 41149178981     PISSN: 00354511     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00397-007-0235-2     Document Type: Article

References (19)

1. Burghardt WR (1991) Oscillatory shear flow of nematic liquid crystals. J Rheol 35:49-62
2. Choate EP, Forest MG (2006) A classical problem revisited: Rheology of nematic polymer monodomains in small amplitude oscillatory shear. Rheol Acta 46:83-94
3. Colby RH, Nentwich LM, Clingman SR, Ober CK (2002) Defect-mediated creep of structured materials. Europhys Lett 54:269-274
4. Cui Z, Forest MG, Wang Q, Zhou H (2006) On weak plane shear and Poiseuille flows of rigid rod and platelet ensembles. SIAM J Appl Math 66:1227-1260
5. de Andrade Lima LRP, Rey AD (2004a) Superposition and universality in the linear viscoelasticity of Leslie-Ericken liquid crystals. J Rheol 48:1067-1084
6. de Andrade Lima LRP, Rey AD (2004b) Assessing flow alignment of nematic liquid crystals through linear viscoelasticity. Phys Rev E 70:011701
7. de Andrade Lima LRP, Rey AD (2006) Superposition principles for small amplitude oscillatory shearing of nematic mesophases. Rheol Acta 45:591-600
8. Forest MG, Wang Q (2003) Monodomain response of finite-aspect-ratio macromolecules in shear and related linear flows. Rheol Acta 42:20-46
9. Forest MG, Wang Q, Zhou H (2000) Exact banded patterns from a Doi-Marrucci-Greco model of nematic liquid crystal polymers. Phys Rev E 61:6655-6662
10. Forest MG, Wang Q, Zhou H, Zhou R (2004) Structure scaling properties of confined nematic polymers in plane shear cells: The weak flow limit. J Rheol 48:175-192
11. Larson RG, Mead DW (1989) Linear viscoelasticity of nematic liquid crystalline polymers. J Rheol 33:185-206
12. Mather PT, Romo-Uribe A, Han CD, Kim SS (1997) Rheo-optical evidence of a flow-induced isotropic-nematic transition in a thermotropic liquid-crystalline polymer. Macromolecules 30:7977-7989
13. Mendil H, Baroni P, Noirez L (2005) Unexpected giant elasticity in side-chain liquid-crystal polymer melts: A new approach for the understanding of shear-induced phase transition. Europhys Lett 76:983-989
14. Mendil H, Baroni P, Noirez L (2006) Solid-like rheological response of non-entangled polymers in the molten state. Euro Phys J E 19:77-85
15. Pujolle-Robic C, Noirez L (2001) Observation of shear-induced nematic-isotropic transition in side-chain liquid crystal polymers. Nature 409:167-171
16. Rubin SF, Kannan RM, Kornfield JA, Boeffel C (1995) Effect of mesophase order and molecular weight on the dynamics of nematic and smectic side-group liquid-crystalline polymers. Macromolecules 28:3521-3530
17. Wang Q (2002) A hydrodynamic theory of nematic liquid crystalline polymers of different configurations. J Chem Phys 116:9120-9136
18. Zhou H, Forest MG (2006) Anchoring distortions coupled with plane Couette and Poiseuille flows of nematic polymers in viscous solvents: morphology in molecular orientation, stress, and flow. Discrete Contin Dyn Syst B 6:407-425
19. Zhou H, Forest MG (2007) Nematic liquids in weak capillary Poiseuille flow: Structure scaling laws and effective conductivity implications. International J Numer Anal Mod 4:460-477