N-Octadecylamine

A (amphiphilic core-shell) R =C H - Tenninaling agent N,M-di-n-octadecylamine polymeiizalion time 72h B (eK sriu kinetics) Terminating agent piperidine polymeiization time 2. S. 24. 79h... 

A bare platinum electrode was coated with a close-packed monolayer of n-octadecylamine by retraction from the molten crystal compound (2). The contact angle of methylene iodide with the monolayer was 68° to 70°, which should be true if the film was close packed. This film-coated electrode was used with the FEP resin-covered gold electrode in the experimental sequence described... 

ARMEEN 18 ARMEEN 18D ARMOFILM CRODAMINE 1.18D FARMIN 80 ICEMAMINE P990 MONOOCTADECYLAMINE NISSAN AMINE AB n-OCTADECYLAMINE 1-OCTADECYLAMINE OKTADECYLAMIN (CZECH) STEARAMINE STEARYLAMINE n-STEARYLAMINE... 

OCTADECYLAMINE see OBCOOO n-OCTADECYLAMINE see OBCOOO N-OCTADECYL-N-BENZYL-N,N-DIMETHYLAMMONIUMCHLORIDE see DTC600 OCTADECYLDIMETHYLBENZYLAMMONIUM CHLORIDE see DTC600 OCTADECYL ISOCYANATE see OBGOOO OCTADECYLTRICHLOROSILANE see OBIOOO... 

Figure 1. Distribution of bonded molecules along the surface at low, intermediate and high bonding densities for island-like (A), random (B) and uniform (C) types of distribution. Bottom row dependencies between the amount of bonded molecules in clusters (a) and the extent of surface coverage (0) for the corresponding types of distributions. Points correspond to the following experimental data O — 3-bromopropyldimethylchlorosilane on silica — lysine on tosyl-activated silica — n-octadecylamine on epoxy-activated silica (this work) O — [3-(3-pyrenyl)propyl]-dimethylchlorosilane on silica [20]. Solid curves 1 and 2 are calculated for /=i.2d and 2.0d respectively (see explanation in the text).

Figure 10-2. Adlineation of films of n-octadecylamine and n-hexadecane. (a) Adsorbed from nitromethane. (b) Adsorbed from n-hexadecane. (c) Proportion of n-hexadecane adlineated with n-octadecylamine. Data by Be-wig and Zisman [9].

Figure 10-6 shows plots of the logarithm of the concentration (weight-percent) of n-eicosanoic acid in cetane and of n-octadecylamine in dicyclohexyl against from data by Bigelow, Glass and Zisman [18). Each plot consists of a temperature-dependent and a temperature-... 

Figure 11-18. Interference in the additive action of dibenzyl disulfide, (a) Adsorption on stainless steel, (b) Friction of stainless steel. I Dibenzyl disulfide only in n-hexadecane. II Dibenzyl disulfide plus n-octadecylamine. Ill Dibenzyl disulfide plus calcium salt of petroleum sulfonate. Data by Spikes and Cameron [65].

Figure 15-22. Effect of temperature on adsorption and scuffing, n-octadecylamine in cetane on stainless steel. Adsorption at 21% surface coverage, o Scuffing. From data by Spikes and Cameron [52].

In the two-step derivatization (Figure 1), 10-cm2 samples were soaked in toluene for 3 min to remove surface impurities. Samples were transferred in 25 mL of 0.04M sodium ethoxide in toluene under dry nitrogen, and were agitated at room temperature for 15 min. In the same vessel, 25 mL of 2.0M 1-bromooctadecane in toluene were added under nitrogen with 15 min mixing at room temperature. The chemically derivatized sheet was removed and soaked consecutively for 30 s at room temperature as follows toluene, ethanol twice, deionized water twice, 0.1 N hydrochloric acid, deionized water twice, followed by air drying for 24 h. A polyurethane was obtained that had random surface N-octadecylamine and urethane substitutions. 

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