Category: 2657-87-6

Tseng, I.-Hsiang;Li, Jheng-Jia;Chang, Po-Ya published 《Mimosa Pudica Leaf-Like Rapid Movement and Actuation of Organosoluble Polyimide Blending with Sulfonated Polyaniline》 in 2017. The article was appeared in 《Advanced Materials Interfaces》. They have made some progress in their research.Electric Literature of C12H12N2O The article mentions the following:

Like the thigmonastic responses of the leaves of Mimosa pudica, the curling of organosol. and free-standing polyimide (PI) films under the stimuli of fingertip-touching or air-blowing is discovered for the first time. The authors discover that the PI films at the dry status can rapidly and reversibly attract and release water mols. at the interface of the thin film in response to the changes of environmental humidity. The moisture-triggered heterogeneous deformation across the film leads to self-curling of PI films. With the blending of suitable amounts of sulfonated-polyaniline (PANI-S) to the PI matrix, the resultant PANI-S/PI film can more effectively breath water from the air and simultaneously create more significant deformation and faster recovery. With the suitable designed patterns on the film, it can serve a highly sensitive and reliable actuator to grasp and release subjects as well as to fold into 3D structures, and to roll like a tank tread by providing trace moisture gradients. This robust PANI-S/PI film can be cast into any shape or coated on various substrates and thus is a promising material for smart delivery systems in industrial applications.3-(4-Aminophenoxy)aniline (cas: 2657-87-6) were involved in the experimental procedure.

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Electric Literature of C12H12N2OEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhou, Haoran;Wang, Dexin;Qu, Chunyan;Liu, Changwei;Mao, Shanshan published 《Preparation and characterization of a copper@polyimide core-shell structure via an in situ induction/imidization route》. The research results were published in《High Performance Polymers》 in 2017.COA of Formula: C12H12N2O The article conveys some information:

Based on the combination of an in situ induction and imidization method for improving the interface bonding of an inorganic material and a polymer, copper/polyimide (Cu/PI) core-shell composite particles have been successfully prepared from poly(amic acid) ammonium salts (PAAS) and a Cu complex via a simple solvothermal process. The structures and the morphologies of the samples were characterized by XPS, X-ray diffraction, SEM and transmission electron microscopy (TEM), resp. It was found that PAAS formed PI via a thermal imidization and subsequently precipitated in the solvent. Through crystallization induction, it then successfully coated on the surface of the formed Cu particles. Based on thermo gravimetric analyses curves and due to no Cu oxidation reactions taking place in the core coated with high-temperature-resistant PI, the weight increase was determined to be 106.4%, instead of up to 124.0% in samples consisting of pure Cu. To complete the study, the researchers used 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. COA of Formula: C12H12N2O The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Electric Literature of C12H12N2OIn 2015, Qu, Chunyan;Liu, Changwei;Zhou, Haoran;Yu, Weimiao;Wang, Dezhi;Wang, Dexin published 《One-step synthesis of PI@Fe₃O₄ composite microspheres and practical applications in Cu(II) ion adsorption》. 《RSC Advances》published the findings. The article contains the following contents:

Polyimide(PI)@magnetite(Fe₃O₄) composite microspheres have been successfully synthesized from poly(amic acid) triethylamine salts (PAAS) and Fe(III) ions by a facile one-step solvothermal process. Furthermore, the formation mechanism of the PI@Fe₃O₄ composite microspheres has been investigated. The morphol. and structure of the samples were both characterized by SEM, transmission electron microscopy (TEM), X-ray diffraction (XRD) and IR spectroscopy (IR). The results obtained show that the surface of magnetite could be successfully coated with polyimide and the coating could permeate throughout the crystals via a self-assembly process. The size of the composite microspheres was found to increase upon increasing the concentration of PAAS. The thermal properties of the composite microspheres were studied via thermogravimetric anal. (TGA) and the magnetic properties were determined by a vibrating sample magnetometer (VSM). Even though the saturation magnetization of the PI@Fe₃O₄ composite microspheres is lower than that of pure Fe₃O₄, the microspheres coated with PI exhibit an increased stability. In addition, basic hydrolysis of the composite microspheres has been carried out and the Cu(II)-adsorption properties of the composite microspheres before and after hydrolysis have been investigated. In doing so, it could be determined that the adsorption capacity of hydrolyzed composite microspheres increases from 5.84 mg g^-1 to 24.63 mg g^-1. To complete the study, the researchers used 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. Electric Literature of C12H12N2O The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Hasegawa, Masatoshi;Hirano, Daiki;Fujii, Mari;Haga, Misako;Takezawa, Eiichiro;Yamaguchi, Shinya;Ishikawa, Atsushi;Kagayama, Takashi published 《Solution-processable colorless polyimides derived from hydrogenated pyromellitic dianhydride with controlled steric structure》 in 2013. The article was appeared in 《Journal of Polymer Science, Part A: Polymer Chemistry》. They have made some progress in their research.Formula: C12H12N2O The article mentions the following:

This work presents novel colorless polyimides (PIs) derived from 1R,2S,4S,5R-cyclohexanetetracarboxylic dianhydride (H”-PMDA). Isomer effects were also discussed by comparing with PI systems derived from conventional hydrogenated pyromellitic dianhydride, i.e., 1S,2R,4S,5R-cyclohexanetetracarboxylic dianhydride (H-PMDA). H”-PMDA was much more reactive with various diamines than H-PMDA, and the former led to PI precursors with much higher mol. weights The results can be explained from the quite different steric structures of these isomers. The thermally imidized H”-PMDA-based films were colorless regardless of diamines because of inhibited charge-transfer interaction. In particular, the H”-PMDA/4,4′-oxydianiline system simultaneously achieved a very high T_g exceeding 300 °C, high toughness (elongation at break > 70%), and good solution processability. In contrast, the H-PMDA-based counterparts were essentially insoluble The outstanding solubility of the former probably results from disturbed chain stacking by its nonplanar steric structure. An advantage of chem. imidization process is also proposed. In some cases, a copolymerization approach with an aromatic tetracarboxylic dianhydride was effective to improve the thermal expansion property. The results suggest that the H”-PMDA-based PI systems can be promising candidates for novel high-temperature plastic substrate materials in electronic paper displays. A potential application as optical compensation film materials in liquid crystal displays (LCD) is also proposed in this work. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012. And 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) was used in the research process.

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Formula: C12H12N2OEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Iwashita, Kenichi;Suzuki, Ryousuke;Katoh, Hironobu;Ohta, Yoshihiro;Yokozawa, Tsutomu published 《Novel photoresist using photodeprotectable N-alkoxybenzyl aromatic polyamide》 in 2018. The article was appeared in 《Journal of Photopolymer Science and Technology》. They have made some progress in their research.Electric Literature of C12H12N2O The article mentions the following:

Photodeprotection of N-octyloxybenzyl aromatic polyamide film containing photo acid generator (PAG) was investigated. The photodeprotection was proceeded well under UV irradiation (365 nm, 5 J/cm²), followed by heating at 130 °C for 15 min in the presence of 25 wt% of PAG. Line pattern of 30 to 20 μm on Si wafer was obtained from the photosensitive film after dipping into acetone. It turned out that N-alkoxybenzyl aromatic polyamides serve as a new photosensitive material in the presence of PAG.3-(4-Aminophenoxy)aniline (cas: 2657-87-6) were involved in the experimental procedure.

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Electric Literature of C12H12N2OEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhang, Chen;Zhuang, Dao-Min;Li, Jia;Chen, Si-Yuan;Du, Xiao-Long;Wang, Jian-Yong;Li, Jing-Yun;Jiang, Biao;Yao, Jian-Hua published 《Diverse reactivity in microwave-promoted catalyst-free coupling of substituted anilines with ethyl trifluoropyruvate and biological evaluation》. The research results were published in《Organic & Biomolecular Chemistry》 in 2013.Quality Control of 3-(4-Aminophenoxy)aniline The article conveys some information:

Diverse reactivity by coupling of substituted anilines with Et trifluoropyruvate was developed under microwave irradiation without catalysts to generate 3-trifluoromethyl-3-hydroxyoxindoles, aromatic hydroxy trifluoromethyl esters, and 1,2-dicarbonyl compounds in a fast and efficient manner. The plausible mechanism for obtaining different products was proposed. Furthermore, the anti-HIV activity of aromatic hydroxy trifluoromethyl esters was first reported. The best inhibitory activity against wild-type HIV-1 IIIB was exemplified by trifluoromethyloxindole I with an IC₅₀ = 5.8 μM, which also displayed potential activity against Y181C mutant virus with an IC₅₀ = 7.5 μM. More significantly, the activities of oxindoles I and II to inhibit K103N/Y181C double mutant HIV-1 reverse transcriptase (RT) are probably similar to that of the second-generation nonnucleoside inhibitor HBY 097 by docking calculation To complete the study, the researchers used 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Quality Control of 3-(4-Aminophenoxy)anilineEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Hong, Wei-Jie;Yuan, Li-Li;Zhang, Hao-Yang;Cui, Chao;Chen, Wei;Yang, Shi-Yong published 《Phenylethynyl-terminated Imide Oligomers Modified by Reactive Diluent for Resin Transfer Molding Application》. The research results were published in《Chinese Journal of Polymer Science》 in 2022.Product Details of 2657-87-6 The article conveys some information:

To meet the processing requirements of resin transfer molding (RTM) technol., reactive diluent containing m-phenylene moiety was synthesized to phys. mixed with phenylethynyl terminated co-oligo imides with well-designed mol. weights of 1500-2500 g/mol derived from 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 3,4′-oxydianiline (3,4′-ODA) and m-phenylenediamine (m-PDA). This blend shows low min. melting viscosity (<1 Pa·s) and enlarged processing temperature window (260-361°C). FPI-R-1 stays below 1 Pa·s for 2 h at 270°C. The relationship between the mol. weight of the blend and its melting stability was first explored. Blending oligo-imides with lower mol. weights exhibit better melting stability. Upon curing at 380°C for 2 h, the thermosetting polyimide resin demonstrates superior heat resistance (T_g=420-426°C). The experimental procedure involved many compounds, such as 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. Product Details of 2657-87-6 The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Reference of 3-(4-Aminophenoxy)aniline《Synthesis and characterization of novel aromatic polyimides from Z-type sexiphenyltetracarboxylic dianhydride and aromatic diamines》 was published in 2014. The authors were Nakagawa, Takafumi;Morikawa, Atsushi, and the article was included in《Polymer Journal (Tokyo, Japan)》. The author mentioned the following in the article:

A Z-type sexiphenyltetracarboxylic dianhydride, 3,3””’,4,4””’-1,1′:2′,1”:4”,1”’:4”’,1””:2””,1””’-sexiphenyltetracarboxylic dianhydride (1), was synthesized in seven steps from di-Et 4-bromophthalate. New aromatic polyimides (PI1x) containing the Z-type sexiphenyl unit were synthesized from 1 and various aromatic diamines (x) by both conventional two- and one-step procedures. The inherent viscosities of PI1x produced by the one-step procedure were 0.23-1.21, which is much higher than those of the polyimides produced by the two-step procedure. The polyimides PI1x were characterized by x-ray diffraction, differential scanning calorimetry, thermogravimetry and dynamic mech. anal. (DMA). The structure-property relationships of the polyimides PI1x were compared with those of the polyimides (PI2x) previously prepared from rigid 3,3””’, 4,4””’-p-sexiphenyltetracarboxylic dianhydride (2), which is an isomer of 1. The glass transition (T_g) temperatures were much higher (270-345 °C) than those of the corresponding PI2x, and the decrease in the storage modulus at T_g was larger than that of the corresponding PI2x. The polyimides PI1x showed lower dielec. constants (ε) and were soluble in polar organic solvents at room or elevated temperature in contrast with PI2x. The Z-type structure significantly influences the properties of polyimides containing sexiphenylene units. To complete the study, the researchers used 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Reference of 3-(4-Aminophenoxy)anilineEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Gao, Guanru;Zhang, Songqi;Wang, Liquan;Lin, Jiaping;Qi, Huimin;Zhu, Junli;Du, Lei;Chu, Ming published 《Developing Highly Tough, Heat-Resistant Blend Thermosets Based on Silicon-Containing Arylacetylene: A Material Genome Approach》. The research results were published in《ACS Applied Materials & Interfaces》 in 2020.Safety of 3-(4-Aminophenoxy)aniline The article conveys some information:

Silicon-containing arylacetylene (PSA) resins exhibit excellent heat resistance, yet their brittleness limits the applications. We proposed using acetylene-terminated polyimides (ATPI) as an additive to enhance the toughness of the PSA resins and maintain excellent heat resistance. A material genome approach (MGA) was first established for designing and screening the acetylene-terminated polyimides, and a polyimide named ATPI was filtered out by using this MGA. The ATPI was synthesized and blended with PSA resins to improve the toughness of the thermosets. Influences of the added ATPI contents and prepolymerization temperature on the properties were examined The result shows that the blend resin can resist high temperature and bear excellent mech. properties. The mol. dynamics simulations were carried out to understand the mechanism behind the improvement of toughness. The present work provides a method for the rapid design and screening of high-performance polymeric materials. To complete the study, the researchers used 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) .

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Safety of 3-(4-Aminophenoxy)anilineEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ozawa, Hiroki;Ishiguro, Eriko;Kyoya, Yuri;Kikuchi, Yasuaki;Matsumoto, Toshihiko published 《Colorless Polyimides Derived from an Alicyclic Tetracarboxylic Dianhydride, CpODA》. The research results were published in《Polymers (Basel, Switzerland)》 in 2021.Recommanded Product: 3-(4-Aminophenoxy)aniline The article conveys some information:

An alicyclic tetracarboxylic dianhydride having cyclopentanone bis-spironorbornane structure (CpODA) was polycondensated with aromatic dianhydrides to form the corresponding poly(amic acid)s which possessed logarithmic viscosities in the range 1.47-0.54 dL/g. The poly(amic acid) was imidized by three methods: a chem., a thermal, and a combined chem. and thermal process. In a thermal method, imidization temperature markedly influenced the film quality and mol. weight of the polyimide. When the poly(amic acid) was cured over the Tg of the corresponding polyimide, the flexible polyimide films were obtained and the mol. weights increased several times, which means that the post-polymerization took place. In spite of low-temperature cure below Tg flexible films with the imidization ratio of 100% were fabricated by a combined chem. and thermal imidization technique. The films possessed the decomposition temperatures in a range of 475-501°C and Tgs over 330°C. The high Tg results from a dipole-dipole interaction between the keto groups of the polymer chains as well as development of the rigid polyalicyclic unit. The polyimide films exhibited CTE between 17 and 57 ppm/K. All the films fabricated were entirely colorless and possessed the λcut-offs shorter than 337 nm. Notably, the films prepared by a chem. method exhibited outstanding optical properties. And 3-(4-Aminophenoxy)aniline (cas: 2657-87-6) was used in the research process.

3-(4-Aminophenoxy)aniline is one of ethers-buliding-blocks. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Recommanded Product: 3-(4-Aminophenoxy)anilineEthers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds.

Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem