4,4 -Diaminodiphenyl methane

Phenothiophosphine ring-containing polyamides and polyesters were also prepared by the polycondensation of 2,8-bischloroformyl-lO-phenylphenothiophos-phine 5,5, 10-trioxide with aromatic diamines such as 4,4 -diaminodiphenyl ether and 4,4 -diaminodiphenyl-methane, and bisphenols such as 4,4 -dihydroxybiphe-nyl and 4,4 -dihydroxydiphenylmethane, respectively [159]. These polymers are soluble in polar aprotic solvents and also exhibit good heat and fire resistance. Phosphorus containing high performance polymers are shown in Table 6. 

Michler s base, N,N,N, N -tetramethyl-4,4 -diaminodiphenyl-methane) in 10 ml glacial acetic acid (yields a greenish solution) and make up to 100 ml with 80% 2-propanol. 

Virtually all of the nitrobenzene made is converted to aniline. The most important use of aniline is for the preparation of 4,4 -diaminodiphenyl methane (commonly called methylenedianiline or MDA), an intermediate to one of the main ingredients used to make polyurethane foams and rubber. Aniline is also used to make other rubber chemicals, textile fiber intermediates, dyes, and pharmaceuticals. 

Azo dye metabolites Activated sludge Under aerobic conditions, two compounds 4,4 -thiodianiline and p-kresidine were most easily degraded, followed by 4,4 -diaminodiphenylmethane and 2-naphthylamine. Under anaerobic conditions, stabilities of the amines were totally different and compounds p-kresidine, 4,4 -diaminodiphenyl methane, and 2-naphthylamine were degraded while the 4-chloroaniline, 2,4-diaminotoluene, and 2,4-diaminoanisole were partly degraded [16]... 

Angeltr—>has briefly reported in a patent the addition of metal ions to several types of polyimides. The object of the invention was a process for forming particle-containing (transparent polyimide shaped structures. Unlike the work discussed previously, all of the metals were added in the form of coordination complexes rather than as simple anhydrous or hydrated salts. The properties of only one film (e.g. cast from a N,N-dimethylformamide(DMF) solution of 4,4 -diaminodiphenyl methane, pyromellitic dianhydride and bis(acetylacetonato)-... 

Asahi Chemical Industries KK claim the unique compound 2-fluoro-4,4 -diamino diphenyl methane, used as a monomer of very high heat resisting resins, is easily obtained by the ECF of 4,4 -diaminodiphenyl methane [97]. 

Tetraglycidyl 4,4 diaminodiphenyl methane epoxy TGDDM (liquid at 23°C)... 

Morgan, R. J., Mones, E. T. The Cure Reactions, Network Structure and Mechanical Response of Diami nodiphenyl Sulfone Cured Tetraglycidyl 4,4 Diaminodiphenyl Methane Epoxies, Polymer (submitted)... 

Goobich, J., and Marom, G., Moisture Absorption by Tetraglycidyl 4,4/-Diaminodiphenyl Methane/4,4 Diamino-diphenyl Sulfone Epoxies Containing Brominated Epoxy Copolymers, Polymer Engineering and Science, vol. 22, 1982, p. 1052. 

SYNS BIS AMINE CURALIN M CURENE 442 CYANASET DI(-4-AMINO-3-CHLOROPHENYL)METH-ANE DI-(4-AMINO-3-CLOROFENIL)METANO (ITALIAN) 4,4 -DIAMINO-3,3 -DICHLORODIPHENYL-METHANE 3,3 -DICHLOR-4,4 -DIAMINODIPHENYL-METHAN (GERMAN) 3,3 -DICHLORO-4,4 -DIAMINODIPHENYLMETHANE 3,3 -DICLORO-4,4 -DIAMINODIFENILMETANO (ITALIAN) MBOCA METHYLENE-4,4 -BIS(o-CHLOROANILINE) p,p -METHYLENEBIS(a-CHLOROANTLINE) p,p -METHYL-ENEBIS(o-CHLOROANILINE) 4,4 -METHYLENE(BIS)-CHLOROANILINE 4,4 -METHYLENEBIS(o-CHLORO-ANILINE) 4,4 -METHYLENEBIS-2-CHLOROBENZ-ENAMINE METHYLENE-BIS-ORTHOCHLOROANIL-... 

SYNS BIS-4-AMINO-3-METHYLFENYEMETHAN (CZECH) 3,3 -DIMETHYL-4,4 -DIAMINODIPHENYL-METHANE MBOT ME-MDA 4,4 -METHYLENE-BIS(2-METHYLBENZENAMINE) 4,4 -METHYLENE DI-o-TOLUIDINE... 

Adenosine triphosphate, when oxidized to its dialdehyde with periodate and condensed with Sepharose-adipic (or sebacic) acid hydrazide, has been used to isolate poly(A) polymerase, and also myosin and its fragments from different sources. A poly(A)-linked resin has been prepared by condensing 4,4 -diaminodiphenyl-methane with periodate-oxidized starch, reducing the resulting Schiff bases with borohydride, diazotizing, and then coupling with the polynucleotide. The resulting material may be used to isolate poly(U) sequences. 

The principal resin investigated in these studies is formulated from a 27 weight percent mixture of 4,4 -diaminodiphenyl sulfone (DOS) and 73 weight percent tetraglycidyl-4,4 -diaminodiphenyl methane (TGDDM). Curing was effected thermally at 177 C for 24 hours. Samples used in sorption measurements were molded films, 10 to 15 mils thick. 

The polymer industry requires large quantities of 4,4 -diaminodiphenyl-methanes. These compounds are used in various applications as polymer additives. Currently they are manufactured by the acid-catalysed condensation of anilines with formaldehyde but like so many reactions of this type, the processes require the neutralisation of waste acid leading to large amounts of salt waste. Cleaner processes are required and solid acids offer a way forward. One potentially useful example of this is the aqueous reaction of aromatic anilines adsorbed on kaolinite with formaldehyde which cleanly give the desired products (Figure 3.5).36 In a typical experiment, the clay is stirred with water before aniline is added to the stirred solution. To this is slowly added formaldehyde solution. The precipitated 4,4 -diaminodiphenylmethane can be extracted in hot ethanol in a yield of 96%. Similarly, several substituted analogues have been prepared in yields of 70-99%. 

Grundmann E, Steinhoff D. 1970. Liver and lung tumors in rats from 3,3 -dichloro-4,4 -diaminodiphenyl-methane. Z Krebsforschung 74 28-39. 

Purnell CJ, Warwick CJ. 1981. Method 3 - analysis of 3,3 -dichloro-4,4 -diaminodiphenyl methane (MOCA) and 2-chloroaniline in air. In Egan H, ed. Environmental carcinogens Selected methods of analysis. Vol. 4 Some aromatic amines and azo dyes in the general and industrial environment. Lyon, France World Health Organization, International Agency for Research on Cancer. lARC scientific publication No. 40, 133-140. 

A second method describes the initial preparation of the polymer ligand, which is then converted into the polychelate by reaction with a transition metal ion [1,3-6,10-12]. An advantage of this procedure is that - in contrast to the polychelates - the polyligands are soluble in polar organic solvents. This method, which leads to quite pure polychelates because of the moderate reaction conditions, first uses the preparation of alkali metal salts of polymeric Schiff-base ligands followed by metallization with several transition metal ions or alkaline earth ions [11]. One example is the reaction of the polymeric ligand derived from 4,4 -dihydroxy-3,3 -diacetylbiphenyl and 4,4 -diaminodiphenyl-methane with Mn(II), Co(II), Cu(ll), Ni(II) and Zn(Il) to yield 2 [13]. 

Density g cm 4,4 -Diphenylmethane diisocyanate (MDI)/polyether polyol/ 4,4 -diaminodiphenyl methane (MDA) MDl/polyether polyol/diethyl toluene dicunine (DETDA) MDl/ polyether polyol/ 3-chloro-3 methoxy-4,4 diamino diphenylmethane (CMOMDA) 0.96 0.98 0.94 (1)... 

Synonyms 4-(4-Aminobenzyl) aniline Benzenamine, 4,4 -methylenebis- Bis (4-aminophenyl) methane Bis (p-aminophenyl) methane DADPM DAPM DDM DDPM Diaminodiphenylmethane 4,4 -Diaminodiphenyl-methane p,p -Diaminodiphenylmethane Dianilinomethane 4,4 -Diphenylmethanediamine MDA Metbylenebis (aniline) 4,4 -Methylenebis (aniline) 4,4-Metbylenebis (benzeneamine) Methylene dianiline p,p-Methylene dianiline ClassiTication Aminophenyl compd. 

Influence of the Functionality of Epoxidized 4,4 -(l-Methylethylidene) bisphenol Novolac Prepolymers on the Time of Gelation during Crosslinking with 4,4 -Diaminodiphenyl-methane at Different Temperatures (epoxy groups amino hydrogen=l) (data from ref. [91 ])... 

Many different aliphatic and aromatic polyamines are available for cross-linking epoxy resins. Some of these are ethylenediamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, and many others. Among the aromatic polyamine are / -phenylene diamine, /n-phenylene diamine, 4,4 -diaminodiphenyl-methane, and diaminodiphenylsulfone. 

Ju et al. (2000) prepared compatibiUzed blends of polyaiylate with an LCP in the presence of tetraglycidyl-4,4 -diaminodiphenyl methane coupling agent. 

The nanocomposites obtained firom phenolic resin and carboxylated MWNTs showed an improvement of the thermal stability than the neat phenolic resin. The highest thermal stability was obtained in the case of the nanocomposites obtained by in situ polymerization, due to the quality of dispersion of the functionalized MWCNTs [94]. An enhancement of the thermal stability was also obtained in the case of nanocomposites containing boron phenolic resin and MWCNTs modified with nitric acid, 4,4 -diaminodiphenyl methane and boric acid. This effect was ascribed to better interfacial interactions between modified MWCNTs and the resin matrix [95]. 

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