Superlattice Structures in Morphologies of the ABC Triblock Copolymers

Authors :: Ichiro Noda
Mahito Nomura
Yasuhiro Mogi
Kouki Ohnishi
Yushu Matsushita
Hiroyuki Kotsuji
Source :: Macromolecules. 27:6755-6760
Publication Year :: 1994
Publisher :: American Chemical Society (ACS), 1994.
Abstract: Four types of morphology, lamellar, ordered tricontinuous double-diamond (OTDD), cylindrical, and spherical structures, of isoprene (I)-styrene (S)-2-vinylpyridine (P) triblock copolymers having I and P block polymers with the same volume fractions, were studied by TEM and SAXS. These studies revealed that the spherical structure has the packing manner of the CsCl type consisting of two spherical domains of I and P end-block polymers and the cylindrical structure, which consists of two kinds of cylindrical domains of end-block polymers, has the tetragonally-coarrayed pattern