PMID- 15903442
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20050805
LR  - 20050520
IS  - 1539-3755 (Print)
IS  - 1539-3755 (Linking)
VI  - 71
IP  - 3 Pt 1
DP  - 2005 Mar
TI  - Surface-induced orientational order in stretched nanoscale-sized polymer 
      dispersed liquid-crystal droplets.
PG  - 031702
AB  - We investigate orientational ordering in stretched polymer-dispersed 
      liquid-crystal (PDLC) droplets using deuterium nuclear magnetic resonance, in the 
      nematic and isotropic phases. In the latter case, we estimate the surface order 
      parameter S(0) and the thickness of the interfacial layer from the 
      temperature-independent surface ordering model for an elliptical cavity with a 
      varying aspect ratio. A simple phenomenological model well describes the 
      quadrupole splitting frequency of NMR spectra in the isotropic phase. The strain 
      dependence of S(0) suggests that stretching-induced changes in the orientation of 
      polymer chains in the PDLC matrix noticeably affect liquid-crystal surface 
      anchoring. Experimental results are supported by simulated NMR spectra obtained 
      as output from Monte Carlo simulations of paranematic ordering in ellipsoidal 
      droplets based on the Lebwohl-Lasher lattice model.
FAU - Amimori, Ichiro
AU  - Amimori I
AD  - Division of Engineering, Brown University, Providence, Rhode Island 02912, USA.
FAU - Eakin, James N
AU  - Eakin JN
FAU - Qi, Jun
AU  - Qi J
FAU - Skacej, Gregor
AU  - Skacej G
FAU - Zumer, Slobodan
AU  - Zumer S
FAU - Crawford, Gregory P
AU  - Crawford GP
LA  - eng
PT  - Journal Article
DEP - 20050317
PL  - United States
TA  - Phys Rev E Stat Nonlin Soft Matter Phys
JT  - Physical review. E, Statistical, nonlinear, and soft matter physics
JID - 101136452
EDAT- 2005/05/21 09:00
MHDA- 2005/05/21 09:01
CRDT- 2005/05/21 09:00
PHST- 2004/09/03 00:00 [received]
PHST- 2005/05/21 09:00 [pubmed]
PHST- 2005/05/21 09:01 [medline]
PHST- 2005/05/21 09:00 [entrez]
AID - 10.1103/PhysRevE.71.031702 [doi]
PST - ppublish
SO  - Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Mar;71(3 Pt 1):031702. doi: 
      10.1103/PhysRevE.71.031702. Epub 2005 Mar 17.