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Atomic force microscopic study of the structure of high‐density polyethylene deformed in liquid medium by crazing mechanism
Author(s) -
BAGROV D.V.,
YARYSHEVA A.Y.,
RUKHLYA E.G.,
YARYSHEVA L.M.,
VOLYNSKII A.L.,
BAKEEV N.F.
Publication year - 2014
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/jmi.12104
Subject(s) - crazing , high density polyethylene , polymer , materials science , deformation (meteorology) , polyethylene , shrinkage , composite material , liquid medium , delocalized electron , deformation mechanism , relaxation (psychology) , mechanism (biology) , chemical physics , chemical engineering , chemistry , microstructure , psychology , social psychology , organic chemistry , engineering , philosophy , epistemology
Summary A procedure has been developed for the direct atomic force microscopic (AFM) examination of the native structure of high‐density polyethylene (HDPE) deformed in an adsorption‐active liquid medium (AALM) by the crazing mechanism. The AFM investigation has been carried out in the presence of a liquid medium under conditions preventing deformed films from shrinkage. Deformation of HDPE in AALM has been shown to proceed through the delocalized crazing mechanism and result in the development of a fibrillar‐porous structure. The structural parameters of the crazed polymer have been determined. The obtained AFM images demonstrate a nanosized nonuniformity of the deformation and enable one to observe the structural rearrangements that take place in the deformed polymer after removal of the liquid medium and stress relaxation. A structural similarity has been revealed between HDPE deformed in the AALM and hard elastic polymers.