Premium
Electron‐microscopical investigation of the morphology of segmented polyurethanes
Author(s) -
Foks J.,
Michler G.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070310514
Subject(s) - morphology (biology) , materials science , electron microscope , scanning electron microscope , polymer , brittleness , phase (matter) , composite material , thin section , polymer science , mineralogy , chemistry , optics , organic chemistry , physics , genetics , biology
Segmented polyurethanes obtained by two‐step synthesis were studied by electron microscope on specimens prepared as replicas from the brittle surface of the polymer and on thin sections cut with a cryo‐ultramicrotome. Each of the specimens showed two different kinds of dispersed phase. Information obtained on morphology complemented each other. The continueous phase observed on the thin section directly by microscope showed no structure of its own and was similar in all polymers investigated, whereas the surface of the brittle fracture showed two kinds of continuous phase.