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π‐Conjugated Polymers with Electronic and Optical Functionalities: Preparation by Organometallic Polycondensation, Properties, and Applications
Author(s) -
Yamamoto Takakazu
Publication year - 2002
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 - 10.1002/1521-3927(20020701)23:10/11<583::aid-marc583>3.0.co;2-i
Subject(s) - condensation polymer , conjugated system , polymer , arylene , materials science , group 2 organometallic chemistry , polymer chemistry , molecule , organic chemistry , chemistry , aryl , composite material , alkyl
Various π‐conjugated polymers are accessible via organometallic polycondensation reactions mediated by organic transition‐metal complexes. For example, Ni(0)‐promoted dehalogenation polycondensation reactions of dihaloaromatic compounds, X‐Ar‐X, afford polyarylenes, —(Ar) n —. Pd‐catalyzed polycondensations give poly(arylene ethynylene)s, —(Ar—C≡C—Ar′—C≡C)— n . These polymers are electrochemically active, electrically conductive, and light‐emitting. Their well‐characterized linear structure brings about a unique packing of the polymer molecules in the solid. In this review, the preparation of π‐conjugated polymers by means of organometallic polycondensation, their basic properties, ordered structure in the solid state, and applications in electronic and optical devices are summarized.