Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.068302
Keywords
-
Categories
Funding
- NSF [DMR-0907338, DMR-1310436, OCI-0910735]
- EPSRC [EP/E10342/1]
- DFG [GL 733/1-1]
- University of Minnesota
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1310436] Funding Source: National Science Foundation
- Office of Advanced Cyberinfrastructure (OAC)
- Direct For Computer & Info Scie & Enginr [0910735] Funding Source: National Science Foundation
Ask authors/readers for more resources
Simulations of five different coarse-grained models of symmetric diblock copolymers are compared to demonstrate a universal (i.e., model-independent) dependence of the free energy and order-disorder transition (ODT) on the invariant degree of polymerization (N) over bar. The actual values of chi N at the ODT approach predictions of the Fredrickson-Helfand (FH) theory for (N) over bar greater than or similar to 10(4) but significantly exceed FH predictions at lower values characteristic of most experiments. The FH theory fails for modest (N) over bar because the competing phases become strongly segregated near the ODT, violating an underlying assumption of weak segregation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
