Early-time structure: Elongated (but not fibrillar) polymer-rich domains (minor phase) in a LC-rich matrix (major phase).
Resulting intermediate/late-time structure: Noncircular polymer-rich domains (minor phase) in a LC-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)
Both PS and PO well-established by t=6. View phi and S profiles.
#1:"new" k1 -- from phi-based S(k): R ~ t1/3 --> slower than t1/3.
Domain growth slows down drastically around t=20, although both PS and PO well-established by t=6. What causes the slowing down? Should we even get t1/3 behavior?
Perhaps the initial behavior is transient and the only significant result is the eventual slowing down of domain growth due to the coupling of PS and PO. But why don't we see this "intermediate" behavior for quenches that are unstable wrt PS and PO, but more unstable wrt PO? Maybe the rate at which ordering occurs becomes faster than the rate at which PS occurs at t~20, causing domain growth to slow down. This would not be observed in quenches like E7-2 (unstable wrt PS and PO, but more unstable wrt PO), since for such a quench, the rate at which ordering happens already exceeds the rate at which PS happens. How can we check this?
Note: Initial growth behavior is actually slightly faster than t1/3. (R ~ t0.36 ~ t1/2.7)
(Remember that these power law fits are meant as guides and no way imply scaling behavior.)
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.