4- phenyl-1,3-diamine

Epoxy-resins picryl chloride or chlor-2-4-dinitrobenzene p-phenyl diamine. Isocyanates proteolytic enzymes p henylene diamine complex salts of platinum cyanuric chloride. 

It was found that the initial reaction rate was equal to YoAo, where Yo and Ao are the initial concentrations of epoxy groups and m-phenyl diamine. Formation of hydroxyl groups during the reaction leads to self-acceleration. This prediction was confirmed by measurements carried out in an isothermal regime, because adiabatic conditions for a reaction lead to self-acceleration due to an increase in temperature (see above). Thus, the initial reaction rate vo can be expressed as... 

Epoxy-resins picryl chloride or chlor-2-4-dinitrobenzene p-phenyl diamine. 

Usually, methylene diisocyanate (MDI) is used with m-phenyl diamine (m-PDA) with hard (aromatic amine) or- soft (amine terminated polyether with MW of 500-5400 Daltons) chain extenders. With optimized formulations and extruder-mold conditions, cycle times of 3 to over 5 min can be obtained. With the use of internal mold release agents, the cycle time can be reduced to less than 2 min. Typical RIM operations for the production of automotive parts can run down to 1-min cycle time. These products range from the softer bumper covers to stiffer vertical body panels, such as fenders, doors, and quarter panels. 

Lee et al. (2008) applied an in sitn interfacial polymerization procedure on the PES support for preparing composite nanoparticle-based membranes. In this procedure, commercial Ti02 nanoparticles of 30 nm were dispersed in an organic trimesoyl chloride (TMC) solntion. The PES support was first immersed in aqueous m-phenyl diamine with 0.05 wt% NaOH the excess reagent was removed from the surface so that a controlled reaction was obtained on subsequent immersion in the solution of TMC in 1,1-dichloro-l-fluoroethane. As a result, a thin modified layer with immobilized nanoparticles was obtained on the surface of the PES support. 

Amino-4-methy]iiitrosamiiio-taIaol 13,139. 2.4 Diamino-l-acetamiuo-benzol IS, 297. l,2-Dlumno-4-acetammo-benzol 13 II146. 4.Nitroso.N.K -dimethyl-phenyles> diamin-(1.3) 14,136. [N-Methyl.anthranila arel-hydTuid... 

Since the commercialization of Nomex and Kevlai a great number of PAs have been reported that covers a wide rage of properties. However the properties of Kevlar , the PA fibre made from terephthalic acid and p-phenyle diamine are still unique in terms properties-price balance. Thus all the efforts dedicated to design and produce novel aromatic PAs have concentrated to improve the... 

N,N -Diacetylethylenediamine-N,N -dithioacetamide (42) reacts with oj-bromoacetophenone and its p-substituted derivatives to give the expected N,N -diacetyl-N,N -bis(4-phenyl-2-thiazolylmethylethylene diamine) (43) (Scheme 21) with R = H, Me, Cl, Br, MeO, yields ranged from 65 to 80% (482). 

Synthesis and Properties. A number of monomers have been used to prepare PQs and PPQs, including aromatic bis((9-diamines) and tetramines, aromatic bis(a-dicarbonyl) monomers (bisglyoxals), bis(phenyl-a-diketones) and a-ketones, bis(phenyl-a-diketones) containing amide, imide, and ester groups between the a-diketones. Significant problems encountered are that the tetraamines are carcinogenic, difficult to purify, and have poor stabihty, and the bisglyoxals require an arduous synthesis. 

Protection Against Flex Cracking. Most antioxidants including waxes provide oxidation protection under static conditions. However, most of them are not effective in mbber products subjected to dynamic flexing, eg, sidewall compounds in tires. The best dynamic protection is provided by either /V-alkyl-/V-phenyl or diaryl-/)-phenylene diamines. 

A/-phenyl-Af -isopropyl- -phenylen e diamine [101-72 ] C15H13N2 (36) RU Akron Chemical Co. Mobay Chemical Co. Monsanto Co. Pennwalt Corp. Ururoyal Chemical. R. T. Vanderbilt Co., Inc. 

Other amino resins besides MF resins are used to a lesser degree in coatings. Urea—formaldehyde resins are used in some coatings for wood furniture because these resins cross-link at lower temperatures than MF resins and the higher water resistance and exterior durabiUty that can be obtained using MF resins are not needed. Ethers of formaldehyde derivatives of 6-phenyl-l,3,5-triazine-2,4-diamine [91-76-9] (benzoguanamine resins) give... 

Pyrimido[4,5-d]pyrimidine-2,4-diamine, 7-phenyl-UV, 3, 338 (60JA5711) Pyrimido[4,5-d]pyrimidine-2,5-diamine UV, 3, 338 (60JA5711)... 

X-ray, 4, 160 (79AX(B)2228> lH-Pyrrole-2,4-diamine, 1-t-butyl-JV, JV -dimethyl-3-phenyl-JV -phenylsulfonyl-X-ray, 4, 160 (78BSB893) lH-Pyrrole-3-methanol, 4-acetyl-X-ray, 4, 160 (78AX(B)1248> lH-Pyrrole-3-methanol, 4-acetyl-, hydrate X-ray, 4, 160 (78AX(B)1248> lH-Pyrrole-3-propanoic acid, ester C NMR, 4, 172 (74JCS(P2)1004>... 

Dichloro-s-triazine and its 6-alkyl analogs are as easily hydrolyzed by water as trichloro-s-triazine and, on suspension in aqueous ammonia (25°, 16 hr), the first is diaminated in good yield. 2,4-Bistrichloromethyl-6-methyl- and -6-phenyl-s-triazines (321) require a special procedure for mono-alkoxylation (0-20°, 16 hr, alcoholic triethylamine) disubstitution occurs at reflux temperature (8 hr). Aqueous triethylamine (100°, 3 hr) causes complete hydroxy-lation of 2,4,6-tris-trichloromethyl-s-triazine which can be mono-substituted with ammonia, methylamine, or phenoxide ion at 20°. 

The chiral bicyclic imidazolidine 74 is deprotonated at the 2 position by s-BuLi and the resulting anion adds to alkyl halides, acid chlorides, chlorofor-mates, phenyl isocyanate, and aldehydes. The use of this compound as a chiral formyl anion equivalent seems to be limited, however, since the diastereoselectiv-ity in the addition to aldehydes is poor and hydrolysis of the products 75 to give aldehydes also produces cyclohexane-1,2-diamine, necessitating isolation of the aldehyde as its 2,4-dinitrophenylhydrazone (96SL1109 98T14255). 

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