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High‐Performance Polymer Foams by Thermally Induced Phase Separation
Author(s) -
Rusakov Dmitrii,
Menner Angelika,
Bismarck Alexander
Publication year - 2020
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000110
Subject(s) - polyetherimide , materials science , polymer , composite material , phase (matter) , morphology (biology) , boiling , solvent , melting point , boiling point , chemical engineering , chemistry , organic chemistry , biology , engineering , genetics
Macroporous, low‐density polyetheretherketone, polyetherketoneketone, and polyetherimide foams are produced using a high‐temperature, thermally induced phase separation method. A high‐boiling‐point solvent, which is suitable to dissolve at least 20 wt% of these high‐performance polymers at temperatures above 250 °C, is identified. The foam morphology is controlled by the cooling procedure. The resulting polymer foams have porosities close to 80% with surface areas up to 140 m 2 g −1 and elastic moduli up to 97 MPa.
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