Bis-4-aminophenyl ether

Biphenylamines, al30, al31 2,2 -Bipyridine, d790 Bis(2-aminoethyl)amine, d362 Bis(4-aminophenyl)ether, o67... 

First, the nylon-salt-type monomers such as XPME [20], XTPE [21, 22], and ODPME [23] with exactly 1 1 composition were prepared from a series of aliphatic diamines (X standing for the number of methylene unit) or aromatic bis(4-aminophenyl) ether (ODA) and the corresponding aromatic tetracarbox-ylic acid half diesters (diacid-diesters) such as pyromellitic acid diethyl ester (PME) and 3,3",4,4"-p-terphenyltetracarboxylic acid diethyl ester (TPE). 

Another successful example is the solid-state thermal synthesis of the wholly aromatic polyimide P-ODPM (Tg=410 °C) by the polycondensation of the aromatic salt monomer ODPMA derived from bis(4-aminophenyl) ether and py-romellitic acid (see Eq. 3, R =H). Figure 3 shows the DSC and TG curves of salt monomer ODPMA [27]. 

SYNS p-AMINOPHENYL ETHER 4-AMINOPHENYL ETHER BIS(p-AMINOPHENYL)ETHER BIS(4-AMINOPHENYL)ETHER DADPE 4,4 -DIAMINO-BIPHENYLOXIDE DIAMINODIPHENYL ETHER p,p -DIAMINODIPHENYL ETHER 4,4-DIAMINODI-PHENYL ETHER 4,4 -DIAMINODIPHENYL OXIDE 4,4 -DIAMINOPHENYL ETHER NCI-C50146 OXYBIS(4-AMINOBENZENE) p,p -OXYBIS(ANILINE)... 

BIS(2-AMINOPHENYL)DISULFIDE see DXJ800 BIS(o-AMINOPHENYL)DISULFIDE see DXJ800 l,l -BIS(2-AMINOPHENYL)DISULFIDE see DXJ800 BIS(4-AMINOPHENYL)ETHER see OPMOOO BIS(p-AMINOPHENYL)ETHER see OPMOOO BIS(4-AMINOPHENYL)METHANE see MJQOOO BIS(p-AMINOPHENYL)METHANE see MJQOOO 2, 4-BIS(AMINOPHENYL)METHANE see MJP750 BIS(4-AMINOPHENYL) SULFIDE see TFIOOO BIS(p-AMINOPHENYL)SULFIDE see TFIOOO BIS(4-AMINOPHENYL) SULFONE see SOA500... 

Polyimide. A typical polyimide results from the condensation of pyromellitic dianhydride and bis-4(aminophenyl)ether. The final insoluble polydiimide is obtained by dehydration of a soluble polyamic acid, namely,... 

Beilstein Handbook Reference) AI3-18375 Aniline, 4,4 -oxydi- Benzenamine, 4,4 -oxybis- Bis(4-aminophenyl) ether Bis(p-aminophenyl) ether BRN 0475735 CCRIS 491 Dadpe Di-(4-aminophenyl)ether Diaminodiphenyl ether EINECS 202-977-0 Ether, 4,4 -diaminodiphenyl HSDB 1316 NCI-C50146 NSC 37075 p,p -Oxydianiline. Crystals mp = 189°. 

However, the opposite effects are also known, as for example, in blends of polyethersulfone (PES) with polyaramid (PARA) prepared by polycondensation of bis (4-aminophenyl)ether with isopthaloyl chloride [Nakata et al, 1990]. The PARA had been thought to be an amorphous polymer, whereas it did crystallize in the blend. The results suggest that the crystallization of PARA was induced by the presence of PES, i.e., this is an example of the blend-induced crystallization. The aramid seems to be a dormant crystalline polymer. In other words, the crystallizability is latent but crystallization in neat PARA was not possible even when annealing - it did take place in the presence of PES. This may be due to an increase of chain mobility by decreasing the glass transition temperature (T ) on blending PARA with PES that has lower T. ... 

Incorporating aromatic silane functions into aromatic polyamides can also improve solubility [45], and was shown recently by Vernekar et al. [38] with polymers 23. These polyamides from 3,3 or 4,4 [suIfonylbis-(4,l-phenyleneoxy)] bisbenzenamine have higher solubility than those from bis(4-aminophenyl)ether. They are soluble in amide solvents, pyridine and w-cresol, and some in THF and nitrobenzene. They also have a high Tj in the range of 477-513 °C, and a Tg in the range of 209-246 °C. 

Poly[bis(4-aminophenyl) ether-co-pyromellitic anhydride] TV TV-dimethy lacetamide 2 423... 

Ethersulfone Aramide Single Tg II was made from isophthaloyl chloride and bis (4-aminophenyl) ether Matsuura et al. (1992), Nakata et al. (1990)... 

In a similar way, the synthesis of aromatic polyamides from aromatic diamines m-phenylenediamine, p-phenylenediamine, bis(4-aminophenyl)methane, and bis(4-aminophenyl)ether and dicarboxylic acids such as isophthalic and tereph-thalic acid was performed in a household microwave oven [72]. The polycondensation was carried out in an JV-methyl-2-pyrrolidone (NMP) solution in the presence of triphenyl phosphite (TPP), pyridine, and lithium chloride as condensing agents to produce a series of polyamides with moderate inherent viscosities of 0.21-0.92 dL/g within 30-50 s. However, no marked differences in molecular weight distribution and inherent viscosities between the polyamides produced by conventional (60 s, 220 °C) and microwave methods were found [72]. 

Table 1. Second virial coefficient of poly[bis(4-aminophenyl) ether-co-lricyclodecenetetracarboxylic dianhydride].

Later the same polymerization technique proved to be successful in the preparation of multiblock copolymers from poly(oxyethylene)dicarboxylic acid and a polyamide oligomer based on bis(4-aminophenyl)ether and isophthalic acid. The synthesis could be carried out either by a one-pot two-step method [52] or using a two-pot technique by first isolating the polyamide oligomer [11]. The two approaches lead to copolymers with similar thermal and mechanical properties, though this was not the case when a one-pot, one-step method was used [52], probably because of the formation of a more irregular structure. 

Aramid Single Tg n was made from isophihaloyl chloride and bis(4-aminophenyl) ether 562,600... 

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