Electroactive aromatic polyamides and polyimides with adamantylphenoxy-substituted triphenylamine units

Synthesis and identification of organosoluble polyimides: thermal, photophysical and chemiluminescence properties

“…[6][7][8] Significant synthetic efforts in the area of high-performance polymers have been focused on improving the processability and solubility of PIs through the design and synthesis of new monomers. Various structural modifications can be made to the PI backbone to modify the polymer properties, such as insertion of flexible linkages on the main chain, 9-13 use of noncoplanar 14 or asymmetric monomers [15][16][17][18][19] and incorporation of pendant groups in the polymer backbone, [20][21][22][23][24][25][26][27][28][29] with results including lower interchain interactions or a reduced polymer chain stiffness. Depending on the type and amount of structural modifications, melting temperatures can be lowered and solubility improved, resulting in processable materials.…”

Functional Aromatic Polyamides

“…Main electroactive group Auxiliary EDG or EWG Comments [41] triphenylamine, TPA -hyperbranched [115] - [121] 3,6-dimethoxycarbazole [112,122] 3,6-di-tert-butylcarbazole [96,101,103] methyl, trifluoromethyl [104] 4-tert-butyl [99,[116][117][118] 2,4-dimethoxy [102] adamantylphenoxy…”

“…The optical transmittance change between the neutral and the fully oxidized states was up to 83% (at 636 nm) [106]. -- [121] 3,6-dimethoxycarbazole [112,122] 3,6-di-tert-butylcarbazole [96,101,103] methyl, trifluoromethyl [104] 4-tert-butyl [99,[116][117][118] 2,4-dimethoxy [102] adamantylphenoxy [105] --ether-linked bis(triphenylamine) [106] piperidinyl [108] morpholinyl [97] TPA (pendant) -- [107,109,113] TPA or carbazole electrompolymerization [110,124,125] diphenylpyrenylamine [98] carbazole methoxy [114] carbazole (pendant) [119,120,123] N,N,N′,N′-tetraphenyl-1,4-phenylenediamine, TPPA tert-butyl [111] methoxy [100] bis(diphenylamino)naphthalene metoxy [126] diphenylfluorenylamine methyl [127] aniline pentamer/azo group…”

Ambipolar and multi-electrochromic polyimides based onN,N-di(4-aminophenyl)-N′,N′-diphenyl-4,4′-oxydianiline

“…Incorporation of triarylamine units into the polyimide backbone not only resulted in enhanced solubility but also led to new electronic functions of polyimides, such as electrochromic and memory characteristics, due to the redox activity of the triarylamino core. It has also been demonstrated that TPA‐based polyimides generally exhibit poor electrochemical and electrochromic stability due to the strong electron‐withdrawing imide group, which increases the oxidation potential of the TPA unit and destabilizes the resultant amino radical cation upon oxidation . Attaching the TPA units as pendent groups on the polyimide backbone may enhance the electrochemical and electrochromic stability of these kinds of electroactive polymers.…”