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Microscopic observations of fracture in spherulitic films of polybutene‐1
Author(s) -
Haas T. W.,
Rae P. H. Mac
Publication year - 1969
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.760090608
Subject(s) - polybutene , materials science , spherulite (polymer physics) , composite material , brittleness , deformation (meteorology) , tension (geology) , fracture (geology) , brittle fracture , compression (physics) , polymer
Spherulitic films of polybutene‐1 have been stressed under biaxial tension. Direct microscopic observations indicate that the deformation is localized at the spherulite centers and at the intersections of boundaries in agreement with previous results obtained with linear polyethylene. The results demonstrate an increasing tendency for brittle failure with decreasing molecular weight. Effects of surfactants and solvents are also presented.