Synthesis and Photoluminescence of Novel Organo-Soluble Polyarylates Bearing (N-Carbazolyl)triphenylamine Moieties

Abstract

ABSTRACT:A new series of polyarylates containing carbazolyl-substituted triphenylamine units were synthesized by direct polycondensation of 4,4 0 -dicarboxy-4 00 -N-carbazolyltriphenylamine with various bisphenols. All polymers were highly soluble in various common organic solvents and could afford tough, transparent, and colorless films by solution casting. These amorphous and organo-soluble polyarylates showed no significant decomposition below 470 C in both nitrogen and air atmospheres with glass transition temperatures (T g ) ranging from 234 to 287 C. In THF solution, these polyarylates exhibited blue photoluminescence around 464-476 nm with quantum yield up to 28%. The photoluminescence exhibited solvent effect and was red-shifted in the polar solvent at room temperature.

Poly(amide-imide-esters) derived from asymmetric diacids and diphenols containing silicon or carbon as central atom. Synthesis, characterization and thermal studies

“…[1][2][3][4] However, if polymers have rigid aromatic rings in the structure, the processability can be affected due mainly to the low solubility and high T g values. [5][6][7][8][9] Several structural changes have been proposed in order to improve the processability, increasing the solubility, decreasing the T g values but maintaining the thermal stability. The introduction of flexible units in the main chain, [10,11] or bulky side groups, [12] has been proposed as a solution to improve the mentioned properties.…”

Novel organosoluble polyarylates based on diphenylamine-fluorene units

“…6 –8 Introducing bulky, three-dimensional triphenylamine (TPA) into the polyarylates backbone will be an effective approach, and this would not only improve their solubility and processability but also endow them with interesting optic-electrical properties. 9 –12…”

“…[6][7][8] Introducing bulky, threedimensional triphenylamine (TPA) into the polyarylates backbone will be an effective approach, and this would not only improve their solubility and processability but also endow them with interesting optic-electrical properties. [9][10][11][12] Electrochromism refers to the reversible color changes in the process of electrochemical redox. Since the first electrochromic tungsten trioxide (WO 3 ) was reported, 13 several electrochromic materials have been developed and can be divided into transition metal complexes, inorganic metal oxides, organic molecules, and conjugated polymers.…”

9,9-Diarylfluorene-Based Poly(alkyl aryl ether)s: Synthesis and Property

“…Meanwhile, such polymers also display excellent filler-dispersing ability [10][11][12] in addition to their high thermal stability, [13][14][15][16] high solubility, [17][18][19] and so on. [20][21][22][23][24][25] We have recently reported the special -interaction of the 9,9-diarylfluorene moiety in the matrix polymers toward -face of the carbon fillers.26 Although many polymers possessing 9,9-diarylfluorene moieties in the main chain have been developed to date, there is no study on polyethers. Polyethers are an important class of high performance engineering thermoplastics with a favorable combination of physical, mechanical, and chemical properties, other than processability, [31][32][33][34][35][36][37][38][39][40][41] and are easily synthesized usually by the polycondensation of diols and ditopic electrophiles.…”

“…Meanwhile, such polymers also display excellent filler-dispersing ability [10][11][12] in addition to their high thermal stability, [13][14][15][16] high solubility, [17][18][19] and so on. [20][21][22][23][24][25] We have recently reported the special -interaction of the 9,9-diarylfluorene moiety in the matrix polymers toward -face of the carbon fillers. 26 Although many polymers possessing 9,9-diarylfluorene moieties in the main chain have been developed to date, there is no study on polyethers.…”