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Synthesis and Photosensitive Properties of Poly(aryl imino) Containing Azobenzene Group (PAI‐A)
Author(s) -
Chen Xiaoquan,
Chang Guanjun
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990352
Subject(s) - chemistry , thermogravimetric analysis , differential scanning calorimetry , azobenzene , aryl , thermal stability , monomer , glass transition , polymer chemistry , thermal decomposition , amination , elemental analysis , palladium , proton nmr , polymer , catalysis , organic chemistry , physics , alkyl , thermodynamics
Abstract Using 4,4′‐dibromobenzophenone and 4,4′‐diaminoazobenzene as monomers, poly(aryl imino) containing azobenzene unit (PAI‐A) was synthesized via palladium‐catalyzed amination, and structurally characterized by means of FT‐IR, 1 H NMR spectra and elemental analysis, the results of which show an agreement with the proposed structure. The UV absorption spectra were tested under different conditions. Additionally, differential scanning calorimetry (DSC) and thermogravimetric (TG) measurements show that PAI‐A possesses high glass transition temperature ( T g >176°C) and good thermal stability with high decomposition temperatures in nitrogen atmosphere ( T D >410°C).