MICROPHASE SEPARATION IN BLOCK COPOLYMERS AND TERPOLYMERS OF NOVEL MACROMOLECULAR ARCHITECTURES

The synthesis of model miktoarm stars of the A(2)B, A(3)B, (AB)(2)(BA) (2) and ABC (A:polyisoprene, B: polystyrene C: poly(methyl methacrylat e)) was achieved by using anionic polymerization techniques and contro lled chlorosilane chemistry. The microphase separation was studied by TEM, SAXS and image simulation. In the case of A(2)B and A(3)B miktoar m star copolymers, the morphology results are in agreement with the ne wly and after the experimental results developed theory of Milner. One of the symmetric in composition inverse block copolymers ((AB)(2)(BA) (2)) shows the OBDD morphology due to the special spatial arrangements of the arms, The first morphological results of ABC miktoarm star ter polymer show interesting future.