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Novel Semiconducting Polymer Particles by Supercritical Fluid Process
Author(s) -
Lim Kwon Taek,
Subban Ganapathy Hullathy,
Hwang Ha Soo,
Kim Jung Taek,
Ju Chang Sik,
Johnston Keith P.
Publication year - 2005
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.200500438
Subject(s) - supercritical fluid , materials science , polymer , supercritical carbon dioxide , chemical engineering , bar (unit) , pulmonary surfactant , solvent , process (computing) , nanotechnology , composite material , chemistry , organic chemistry , computer science , physics , meteorology , engineering , operating system
Summary: A simple method to prepare surfactant‐free and solvent‐free semiconducting polymer particles by using an environmentally benign supercritical carbon dioxide (scCO 2 ) process is reported. The process of the rapid expansion of supercritical solutions (RESS) is used to produce spherical particles of poly[2‐(3‐thienyl)acetyl 3,3,4,4,5,5,6,6,7,7,8,8,8‐tridecafluorooctanoate] (PSFTE), 50–500 nm in size, from 0.1–0.5 wt.‐% PSFTE solutions in CO 2 at pre‐expansion temperatures of 40 °C and pre‐expansion pressures of 276 bar.An FESEM image of PSFTE particles produced by the RESS process with CO 2 .