PHASE-BEHAVIOR OF ABC-TRIBLOCK COPOLYMERS WITH 2 INHERENTLY MISCIBLE BLOCKS

The phase behavior of ternary soprene-block-poly-1,2-butadiene-block-p olystyrene (ABC) triblock copolymers based on a compatible diblock cop olymer attached to an incompatible C-block of different lengths is inv estigated by differential scanning calorimetry, transmission electron microscopy and dynamic mechanical analysis. It is shown that the syste m behaves like a binary diblock copolymer of a mixed AB-block and a mi crophase separated C-block.