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New Poly(arylene ethynylene)s Consisting of Electron‐Deficient Aryleneimide Units
Author(s) -
Witzel Silke,
Ott Christina,
Klemm Elisabeth
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.200500059
Subject(s) - arylene , sonogashira coupling , solubility , polymer , polymer chemistry , side chain , excited state , materials science , spectral line , chemistry , crystallography , organic chemistry , physics , palladium , alkyl , astronomy , nuclear physics , aryl , catalysis
Summary: A new class of poly(arylene ethynylene)s (PAEs) containing an electron‐deficient N ‐alkylphthalimide unit was prepared by means of a Sonogashira reaction. Complete solubility of the PAEs was observed by utilizing a 2,6‐diisopropylphenyl side chain. The chemical structure of the novel soluble polymer 3c was confirmed by NMR spectra, whereas the insoluble polymers were characterized by elemental analysis and IR spectra. Fluorescence measurements of 3c indicate a rigid structure and high symmetry in the excited state.