Design of Copolymeric Materials

Details Design of Copolymeric Materials Design of Copolymeric Materials

1995-06-09

arxiv.org/abs/cond-mat/9506044v1

Physics

Condensed Matter

15 pages latex 2.09 and psfig, 1 postscript figure.

Scientific paper

10.1088/0305-4470/28/14/003

We devise a method for designing materials that will have some desired structural characteristics. We apply it to multiblock copolymers that have two different types of monomers, A and B. We show how to determine what sequence of A's and B's should be synthesised in order to give a particular structure and morphology. %For example in a melt of such %polymers, one may wish to engineer a body-centered %cubic structure. Using this method in conjunction with the theory of microphase separation developed by Leibler, we show it is possible to efficiently search for a desired morphology. The method is quite general and can be extended to design isolated heteropolymers, such as proteins, with desired structural characteristics. We show that by making certain approximations to the exact algorithm, a method recently proposed by Shakhnovich and Gutin is obtained. The problems with this method are discussed and we propose an improved approximate algorithm that is computationally efficient.

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