Diethylenetriamine, chemical structures

Fig. 3. Chemical structure of the diethylenetriamine identified from the PS-SCL showing the greatest inhibition of HIV-1 replication.

The chemical structures of important amines for curing epoxy resins in adhesive systems are identified in Fig. 5.1. Diethylenetriamine (DETA), triethylenetetramine (TETA), ra-aminoethylpiperazine (AEP), diethylaminopropylamine (DEAPA), ra-phenylenediamine (MPDA), and diaminodiphenyl sulfone (DDS) are the most commonly used members of this class. They are all primary amines. They give room or elevated temperature cure at near stoichiometric ratios. Ethylenediamine is too reactive to be used in most practical adhesive formulations. Polyoxypropyleneamines (amine-terminated polypropylene glycols) impart superior flexibility and adhesion. 

They should not be excessively toxic, corrosive, reactive with air or thermally unstable. Their performance should be as high as possible and this is obriously limited to particutar chemical structures. Subsequently blends were introduced for example, 50/50 hydrazine/unsym-dimethyUiydrazine (UDMH), or UDMH w ith acetonitrile and diethylenetriamine (DKTA). On UDMH sec Vol. Ill, p. 308. 

Figure 12.18 Chemical structures of boronic acid-appended pyrene (B-dye), dansyl-diethylenetriamine (G-dye), and rhodamine B (R-dye).

Figure 1. The chemical structure of (a) y-(aminopropyl) trimethoxy silane (Z6011) (b) N-(3-Trimethoxysilylpropyl) diethylenetriamine (TMS).

FICURE 10.6 Chemical structures of (a) 2-dimethylaniinomethylphenyl (damp), (b) 1,4,8,11-tetraazacy-clotetradecane (cyclam), (c) phenanthroline (phen), (d) 1,2-ethylenediamine (en), (e) diethylenetriamine (dien), and (f) terpyridine (terpy). 

Nickel K-edge k -weighted EXAFS spectra, with fitted curves according to chemical model (top row) and the associated Fourier transforms (bottom row) for (a) Ni(diethylenetriamine)2-Al6P6024F2 (Ni(deta)2-UT-6) (b) Ni(deta)2-UT-6 calcined in oxygen at 600 °C (c) bulk NiO, which has the rocksalt structure. The similarity between (b) and (c) indicates that NiO particles are produced upon calcination of the as-prepared complex-templated AlPO. 

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