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Structure and properties of PMP foams doped with Cu nanopowders
Author(s) -
Du K.,
Zhang L.,
Luo X.,
Yin Q.
Publication year - 2006
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.24959
Subject(s) - materials science , doping , crystallization , composite material , dispersion (optics) , polymer , chemical engineering , modulus , phase (matter) , chemistry , organic chemistry , physics , optoelectronics , optics , engineering
Poly‐4‐methyl‐1‐pentene (PMP) foams doped with Cu nanopowders have been prepared by thermally induced phase separation. Ultrasonic dispersal was exploited to increase dispersion uniformity of Cu nanopowders in the foam skeleton. With increase in the concentration of Cu nanopowders, the structure of the doped PMP foams becomes finer and the size of cells, smaller. The modulus data of the doped foams described by a scaling constant larger than two significantly overestimate the predicted value. These indicate two roles of Cu nanopowders in PMP foams: fortifiers of foam structure and nuclei in polymer crystallization. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5627–5632, 2006