Resulting intermediate/late-time structure: Elliptical LC-rich domains (minor phase) in a polymer-rich matrix (major phase). View phi and S profiles.
Evolution of degree of PS and PO.
for PS (red): delta_phi(t) = phimax(t) - phimin(t)
for PO (blue): S(t) = Smax(t)
Plot indicates that PS is significant at t=8 and PO is significant at t=20. phi and S profiles reveal that these times (at which this plot indicates a high degree of PS and PO) represent when PS and PO begin to be significant. (That is, there is at least one or two small regions that have strongly phase separated or ordered.)
For this quench, PS is strong at t~8. PO, however, is not really significant at t=20. There are only a few, small ordered LC-rich domains present. Ordering begins to be truly significant at t~30, when there are several ordered LC-rich droplets. By t=50, many of the LC-rich domains present have strong ordering within them.
#1: "new" k1 -- from phi-based S(k).
Initially, R ~ t1/3
t~50, domain growth slows down.
Initially, system follows Model B growth law. Then, domain growth slows down, particularly when most LC-rich droplets possess significant ordering.
#2: "new" k1 -- from phi-based S(k).
(Remember that these fits are meant as guides and no way imply scaling behavior.)
#3: "old" k1 -- from phi-based S(k).
(Remember that these fits are meant as guides and no way imply scaling behavior.)
#4: "old" k1 -- from phi-based S(k).
R ~ t2/3 --> t1/3 --> slower than t1/3.
We can compare these results to those of a different lattice size:
To view directly the results of those of a different lattice size:
Jump to the individual results of the quench with (phi0, T, N) of:
Other links:
www.chem.ucla.edu/~aml/research.html
Last updated August 1, 1999.