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Nanometer scale mechanical study on well defined nanostructured chain aggregation of polyethylene
Author(s) -
Du Binyang,
Liu Jieping,
Zhang Jian,
Yang Decai,
He Tianbai,
Tsui Ophelia K.C.
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200390115
Subject(s) - nanoindentation , materials science , nanometre , transmission electron microscopy , polymer , composite material , polyethylene , nanostructure , nanotechnology , nanochemistry , perpendicular , modulus , geometry , mathematics
Two kinds of polyethylene chain aggregation with chain axis perpendicular and parallel to the supported substrate were designed and successfully obtained from melt under an electric field and by melt‐drawn method, respectively. Their nanostructures were investigated by using transmission electron microscopy and atomic force microscopy. The chain modulus of the aggregations along and perpendicular to the chain axis were quantitatively measured to be 267 GPa and 13.8 GPa, respectively, by performing atomic force microscopy combining nanoindentation technique. This work provides new method to study polymer properties on the nanometer or molecular scale and insight into structure‐property relationship on the nanometer scale for polymers, which was usually established based on micro‐scale structure and macro‐scale property.