Mixing of immiscible polymers using nanoporous coordination templates

Takashi Uemura (), Tetsuya Kaseda, Yotaro Sasaki, Munehiro Inukai, Takaaki Toriyama, Atsushi Takahara, Hiroshi Jinnai and Susumu Kitagawa ()
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Takashi Uemura: Graduate School of Engineering, Kyoto University
Tetsuya Kaseda: Graduate School of Engineering, Kyoto University
Yotaro Sasaki: Graduate School of Engineering, Kyoto University
Munehiro Inukai: Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University
Takaaki Toriyama: Institute of Materials Chemistry and Engineering (IMCE), Kyushu University
Atsushi Takahara: Institute of Materials Chemistry and Engineering (IMCE), Kyushu University
Hiroshi Jinnai: Institute of Materials Chemistry and Engineering (IMCE), Kyushu University
Susumu Kitagawa: Graduate School of Engineering, Kyoto University

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract The establishment of methodologies for the mixing of immiscible substances is highly desirable to facilitate the development of fundamental science and materials technology. Herein we describe a new protocol for the compatibilization of immiscible polymers at the molecular level using porous coordination polymers (PCPs) as removable templates. In this process, the typical immiscible polymer pair of polystyrene (PSt) and poly(methyl methacrylate) (PMMA) was prepared via the successive homopolymerizations of their monomers in a PCP to distribute the polymers inside the PCP particles. Subsequent dissolution of the PCP frameworks in a chelator solution affords a PSt/PMMA blend that is homogeneous in the range of several nanometers. Due to the unusual compatibilization, the thermal properties of the polymer blend are remarkably improved compared with the conventional solvent-cast blend. This method is also applicable to the compatibilization of PSt and polyacrylonitrile, which have very different solubility parameters.

Date: 2015
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DOI: 10.1038/ncomms8473

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