Triphenylamine-containing electrochromic materials with great potential applications in low energy-consumption displays, light-adapting mirrors vehicles, and smart windows have experienced an exponential growth of research interests. In this review, the newly developed triphenylamine-based derivatives polymers are reviewed elaborated.

A new triphenylamine-containing aromatic diamine, N,N-bis(4-aminophenyl)-N',N'-diphenyl-1,4-phenylenediamine, was synthesized from the amination reaction between 4-aminotriphenylamine and 4-fluoronitrobenzene subsequent reduction of dinitro intermediate. series novel poly(amine-imide)s with pendent triphenylamine units were prepared newly diamine various tetracarboxylic dianhydrides by either a one-step or conventional two-step polymerization process. All amorphous readily soluble in many...

This review focused on high-performance polymers with anodically electrochromic triarylamine units built into main chains or as pendants. The aim of the is to present most important and common trends regarding polymer synthesis from point view introduction moiety demonstrate how structures influence their properties, which leads them be suitable for optoelectronic device construction. also covers a majority works in recent decade involving characteristic evaluation resulting well structural...

A 4-methoxy-substituted triphenylamine containing the aromatic diamine, 4,4′-diamino-4″-methoxytriphenylamine (2), was synthesized by caesium fluoride-mediated condensation of p-anisidine with 4-fluoronitrobenzene, followed palladium-catalyzed hydrazine reduction dinitro intermediate. series new polyamides pendent (TPA) units having inherent viscosities 0.27–1.39 dL g−1 were prepared via direct phosphorylation polycondensation various dicarboxylic acids and diamine (2). All polymers readily...

Abstract Flexible multi‐colored electrochromic and volatile memory devices are fabricated from a solution‐processable electroactive aromatic polyimide with starburst triarylamine unit. The prepared by the chemical imidization was highly soluble in many organic solvents showed useful levels of thermal stability associated high glass‐transition temperatures. strong electron‐donating capability possesses static random access behavior longer retention time than other 6FDA‐based polyimides....

Stretchable conductors based on silver nanowires (AgNWs) and polydimethylsiloxane (PDMS) have been studied extensively for many years. However, it is still difficult to achieve high transparency with low resistance due the attractive force between AgNWs PDMS. In this paper, we report an effective method transfer into PDMS by using substrates which a hydrophobic surface, successfully prepared stretchable AgNW/PDMS electrodes having sheet at same time. The obtained can be stretched, twisted,...

A new triphenylamine-containing aromatic diamine, N,N-bis(4-aminophenyl)-N',N'-di(4-methoxylphenyl)-1,4-phenylenediamine (4), was successfully synthesized by the cesium fluoride-mediated condensation of 4-amino-4',4' '-dimethoxytriphenylamine with 4-fluoronitrobenzene, followed palladium-catalyzed hydrazine reduction dinitro intermediate. series novel polyamides pendent 4,4'-dimethoxy-substituted triphenylamine (TPA) units having inherent viscosities 0.28−0.80 dL/g were prepared via direct...

A series of solution-processable near-infrared (NIR) electrochromic aromatic polyamides with starburst triarylamine units in the backbone were prepared by phosphorylation polyamidation from a newly synthesized diamine monomer, N,N-bis[4-(4-methoxyphenyl-4′-aminophenylamino)phenyl]-N′,N′-di(4-methoxyphenyl)-p-phenylenediamine, and two dicarboxylic acids. These polymers highly soluble many organic solvents showed useful levels thermal stability associated high glass-transition temperatures...

A novel electrochromism (EC) and photoluminescence (PL)‐active poly(4‐cyanotriphenylamine) ( CN‐PTPA ) is prepared by oxidative coupling polymerization from 4‐cyanotriphenylamine (CN‐TPA) using FeCl 3 as an oxidant. The high‐performance electrofluorochromic (EFC) devices thin film with photoluminescent quantum yield of 21.9% active layer are readily fabricated reveal the highest fluorescent contrast ratio I off / on 242 between (neutral) state non‐fluorescent (oxidized) state, rapid response...

Triphenylamine (TPA) and 4,4′-dimethoxy-triphenylamine (TPAOMe) derivatives were successfully linked with two high-performance AIEgens, triphenylethylene (TPE) benzo[b]thiophene-1,1-dioxide (BTO), to obtain four aggregation-induced emission electro-active materials, TPETPA, BTOTPA, TPETPAOMe, BTOTPAOMe. The effects on photoluminescence characteristics electrochromic (EC) electrofluorochromic (EFC) behaviors in cross-linking gel-type devices derived from the prepared materials systematically...

The molecular structure of polymer electrets is crucial for creating diverse functionalities organic field-effect transistor (OFET) devices. Herein, a conceptual framework has been applied in this study to design the highly photoresponsive carbazole-based copolymer electret materials application OFET memory. As an layer, two 1,8-carbazole-based copolymers were utilized; copoly(CT) consisted carbazole as donor group and thiophene π-spacer, whereas copoly(CBT) was further introduced acceptor...

A series of electroactive aromatic polyamides with 4-(dimethylamino)triphenylamine [(NMe2)TPA] units in the backbone were prepared from a newly synthesized diamine monomer, 4,4′-diamino-4′′-(dimethylamino)triphenylamine, and various dicarboxylic acids via phophorylation polyamidation reaction. These are readily soluble many organic solvents can be solution-cast into tough amorphous films. They had useful levels thermal stability associated relatively high glass-transition temperatures...

A series of solution-processable near-infrared (NIR) electrochromic aromatic polyamides with N,N,N′,N′-tetraphenyl-p-phenylenediamine (TPPA) units in the backbone were prepared from phosphorylation polyamidation reactions a newly synthesized diamine monomer, N,N′-bis(4-aminophenyl)-N,N′-di(4-methoxylphenyl)-1,4-phenylenediamine, various dicarboxylic acids. These polymers readily soluble many organic solvents and showed useful levels thermal stability associated high glass-transition...

A new carbazole-derived triphenylamine-containing aromatic dicarboxylic acid monomer, 4,4'-dicarboxy-4' '-N-carbazolyltriphenylamine, with blue light (460 nm) fluorescence quantum yield of 40% was successfully synthesized by the cesium-fluoride-mediated condensation N-(4-aminophenyl)carbazole 4-fluorobenzonitrile, followed alkaline hydrolysis dinitrile intermediate. series novel poly(amine-amide)s pendent N-phenylcarbazole units having inherent viscosities 0.36−0.61 dL/g were prepared from...

In this study, a synthesis route was developed for preparing highly transparent novel polyimide-nanocrystalline-titania hybrid optical films with relatively high titania content (up to 50 wt%) and thickness (20–30 μm) from soluble polyimide 6F-poly(p-hydroxy-imide) (6FPI). It has been demonstrated that the introduction of bulky CF3 groups into backbones enhanced both solubility transparency. Furthermore, attachment hydroxyl provided organic–inorganic bonding resulted in homogeneous solutions...

In this study, N,N′-bis(4-aminophenyl)-N,N′-di(4-methoxyl-phenyl)1,4-phenylenediamine [(OMe)2TPPA-diamine] and various dianhydrides such as oxydiphthalic dianhydride (ODPA), 3,3′,4,4′-diphenylsulfonetetracarboxylic (DSDA), pyromellitic (PMDA), 1,4,5,8-naphthalenetetracarboxylic (NPDA) were used to synthesize new functional polyimides (OMe)2TPPA-ODPI (ODPI), (OMe)2TPPA-DSPI (DSPI), (OMe)2TPPA-PMPI (PMPI), (OMe)2TPPA-NPPI (NPPI), respectively for memory device applications. For comparison, the...

We have fabricated electrically programmable memory devices with thermally and dimensionally stable poly(N-(N',N'-diphenyl-N'-1,4-phenyl)-N,N-4,4'-diphenylene hexafluoroisopropylidene-diphthalimide) (6F-2TPA PI) films investigated their switching characteristics reliability. 6F-2TPA PI were found to reveal a conductivity of 1.0 × 10−13–1.0 10−14 S cm−1. The exhibit versatile that depend on the film thickness. All are initially present in OFF state. thickness >15 <100 nm excellent...

A novel electrochromic device (ECD) based on an electroactive ambipolar system was constructed and designed through absorption-complementary approach. The consisted of polyamides (PAs) with N,N,N′,N′-tetraphenyl-p-phenylenediamine (TPPA) tetraphenylbenzidine (TPB) units in the backbone heptyl viologen (HV) supporting electrolyte. Each materials (ECMs), including TPPA-PA, TPB-PA HV, provided one three primary colors that merged into a black color. Because suitable counter electrode used this...

By introducing colorless polyimide as a binder, an AgNW transparent electrode exhibited excellent thermal stability, bendability, and adhesion properties.

Flexible electrofluorochromic devices were prepared from two electrochromic and AEE-active (AEE: aggregation-enhanced emission) cyanoarylamine-containing high-performance polymers, exhibiting the highest contrast ratio (If/If0) of 151.9 at a low working potential.

In this study, the new functional polyimides 9Ph-ODPI, 9Ph-DSPI, and 9Ph-PMPI consisting of electron-donating starburst triarylamine units different dianhydrides were synthesized used for memory device applications along with 9Ph-6FPI. To investigate effects donor moieties in on their behavior, corresponding 3Ph- series (3Ph-PIs) 5Ph-PIs also discussed. With intensity electron donation increasing from 3Ph-PIs to 9Ph-PIs, retention time shows a systematic increase. The increases...