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Morphology and domain size of a model graft copolymer
Author(s) -
Matsushita Yushu,
Noda Ichiro
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961060123
Subject(s) - copolymer , lamellar structure , polymer chemistry , morphology (biology) , styrene , materials science , volume fraction , polymerization , chain (unit) , chemical engineering , composite material , polymer , genetics , physics , astronomy , engineering , biology
We prepared well‐defined styrene (S)‐2‐vinyl‐pyridine (P) graft copolymers of the ABB type or SPP graft copolymers, in which as block chain is grafted at the center of a block chain, as a model graft copolymer by anionic polymerization and coupling reaction. The composition dependence of morphology of SPP graft copolymers is qualitatively the same as that of SP diblock copolymers, but the composition range of each structure is shifted to the higher volume fraction of S block chain. The molecular weight dependence of lamellar domain size of SPP graft copolymers is almost the same as that of SP diblock copolymers, but the magnitudes are smaller. These experimental results are well explained by the difference in chain architectures.