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The phase diagram of AB-multiblock copolymer melts containing A and B blocks obeying the Laser distribution, has been investigated for various values of the parameters K and M. As $M\longrightarrow\infty$ it reduces to the ordinary SchultzZimm distribution. With decreasing M, the transition lines of the lamellar, hexagonally close-packed cylinders and body-centered-cubic phases shift to greater $N\times\ X$, so that for high K these shifts are very large while for low K they are very small.
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