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Morphology of polyamide and polyether block amide blends
Author(s) -
Boublil H.,
Okoroafor E.,
Belhoucine M.,
Rault J.,
Atochem M. Glotin
Publication year - 1989
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760291010
Subject(s) - polyamide , miscibility , materials science , lamellar structure , morphology (biology) , amide , copolymer , phase (matter) , polymer blend , block (permutation group theory) , polymer chemistry , composite material , chemical engineering , polymer science , polymer , organic chemistry , chemistry , geometry , mathematics , biology , engineering , genetics
The morphology of polyamide 12 and polyether block amide blends was investigated by electron microscopy and dynamic mechanical techniques. The blends are not miscible, and phase segregation is observed. In each phase, the lamellar structure of the pure components is observed. The stability of these micro phases is pointed out. When the mass ratio of the hard and soft sequences in the block copolymer is about 4, a partial miscibility takes place.