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The detection of structure in amorphous polymers by electron microscopy: Particle flow
Author(s) -
Chapoy L. L.,
Sørensen A.
Publication year - 1975
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.760150211
Subject(s) - materials science , polymer , electron microscope , polystyrene , particle (ecology) , amorphous solid , emulsion polymerization , chemical physics , rheology , polymerization , electron , chemical engineering , composite material , crystallography , optics , chemistry , physics , oceanography , engineering , geology , quantum mechanics
During the last several years there has been considerable interest in the occurrence of structure in certain bulk polymers normally thought to be structurally homogeneous. Specifically, it has been proposed that polymers produced by emulsion polymerization may retain a particle structure in the bulk state. This has been demonstrated by both rheological measurements and by electron microscopy. In this work we show conclusively that at least part of the particle structure observed by electron microscopy for polystyrene is an intrinsic feature of the fracture surface and is in no way related to the history of the sample.