New fast SCFT algorithm applied to binary diblock copolymer/homopolymer blends
Matsen, M. (2003) New fast SCFT algorithm applied to binary diblock copolymer/homopolymer blends. Macromolecules, 36 (25). pp. 9647-9657. ISSN 0024-9297
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To link to this article DOI: 10.1021/ma0349377
We present an efficient strategy for mapping out the classical phase behavior of block copolymer systems using self-consistent field theory (SCFT). With our new algorithm, the complete solution of a classical block copolymer phase can be evaluated typically in a fraction of a second on a single-processor computer, even for highly segregated melts. This is accomplished by implementing the standard unit-cell approximation (UCA) for the cylindrical and spherical phases, and solving the resulting equations using a Bessel function expansion. Here the method is used to investigate blends of AB diblock copolymer and A homopolymer, concentrating on the situation where the two molecules are of similar size.