Adipoyl chloride

PEROXIDES AND PEROXIDE COMPOUNDS - ORGANIC PEROXIDES] (Vol 18) Adipoyl chloride [111-50-2]... 

When ACPC was condensed with hexamethylene diamine in the presence of two other acid chlorides (seb-acoyl or adipoyl chloride), poly(amide)s 6.6 and 6.10 with various numbers of azo groups per repeating unit (between 0.14 and 1.0, depending on the ratio of the acid chlorides used) could be obtained [35,36]. Thus, block copolymers with a controlled segment length of the poly-(amide) blocks were attainable. 

Example 15. PA from m-phenylenediamine and adipoyl chloride by solution polymerization.2 32 To a well-dried 250-mL three-necked straight-wall flange flask with nitrogen inlet/outlet, dropping funnel, and magnetic stirrer (Fig. 3.18b),... 

This reaction also takes place with halogenides of dibasic acids. Thus adipoyl chloride and diethyl phosphite are reacted at 90°C for 8 h yielding adipyl-diphosphonic acid diethyl ester, according to Eq. (41). 

C5Hj 02 140-88-5) see Acrivastine Azelastine Benperidol Benzquinamide Setiptiline Troglitazone ethyl adipoyl chloride... 

Nylon 66 can be drawn from a dish containing two starting materials. The bottom layer is an aqueous solution of 1,6-hexanediamine, and the top layer is adipoyl chloride (a more reactive derivative of adipic acid). Nylon 66 forms at the interface between the two liquids. 

How can you make a polyester and a polyamide Objectives Prepare a polyester from phthalic anhydride and ethylene glycol. Prepare a polyamide from adipoyl chloride and hexamethylenediamine. phthalic anhydride (2.0 g) sodium acetate (0.1 g) ethylene glycol (1 mL) 5% adipoyl chloride in cyclohexane (25 mL) 50% aqueous ethanol (10 mL) 5% aqueous solution of hexamethylenediamine (25 mL) 20% sodium hydroxide (NaOH) (1 mL) scissors copper wire test tube test-tube rack 10-mL graduated cylinder 50-mL graduated cylinder 150-mL beakers (2) ring stand clamp Bunsen burner striker or matches balance weighing papers (2)... 

Avoid skin contact with sodium hydroxide, phthalic anhydride, adipoyl chloride, or hexamethylenediamine. 

Using a clean 50-mL graduated cylinder, measure 25 mL of a solution of adipoyl chloride in cyclohexane and pour it into a 150-mL beaker. Record the volume used in Data Table 2. 

Carefully pour the adipoyl chloride solution down the inside wall of the beaker containing the hexamethylenediamine. This can best be done by tilting the beaker containing the hexamethylenediamine and pouring the adipoyl chloride solution down the inclined side. If this is done carefully, two layers will form. 

Conditions for the safe preparation of the diisocyanate from adipoyl chloride and sodium azide in acetonitrile-toluene mixtures were established. 

The film reacted with adipoyl chloride followed by coupling with 7-hydroxycoumarin was subjected to methanolysis at 1 N HC1 and 60°C. The regenerated coumarin was assayed at pH 10 by fluorescence spectroscopy at an excitation wavelength of 329 nm and an emission wavelength of 455 nm. A Hitachi MPF-4 Fluorescence Spectrophotometer was used for all fluorescence measurements. 

Adipoylation. Since adipoyl chloride has two groups that are reactive with the hydroxyl group, adipoylation is expected to have some features different from urethanation with monoisocyanates. The results of adipoylation are given in Figure 12. 

Figure 12. Surface concentration (Cs) of the hydroxyl groups half-esterified hy adipoyl chloride for cellulose and PVA films (O) Visking (A) cellophane (0)...

Two types of non-LC oligoester diols were prepared for comparison. In one type, 2a-2g, liquid crystallinity was disrupted by substituting adipoyl chloride for terepthaloyl chloride in TOBC. 

Preparation of 2a-2g. The diacid chloride precursor was prepared by substituting adipoyl chloride for terepthaloyl chloride in Bilibin s procedure (17). Reaction of this precursor with diols was carried out as described for la-lg except that the products were not poured into toluene. Diols 2a-2g were resinous solids which solidified on standing. 

A second classical method for making capsules from emulsions is to form the shell polymer in situ using interfacial polymerization (Morgan and Kwolek 1959 Wittbecker and Morgan 1959). This method is similar to the nylon rope trick often used as a demonstration, where a solution of diacid chloride in organic solvent (such as adipoyl chloride in hexanes) is layered in a beaker with a diamine aqueous phase (such as 1,6-hexadiamine in water Friedli et al. 2005). Because the two monomers meet only at the interface of the two phases, the condensation polymerization to form the polyamide occurs only at the interface. 

The nylon rope trick . The diamine, 1,6-diaminohexane, is dissolved in water to which some sodium carbonate has been added. A solution of a diacid chloride, adipoyl chloride, in cyclohexane is added and a nylon thread can be pulled from the interface between the two phases. 

Nylon-6,6 membrane was formed at the solution interface of adipoyl chloride (0.01 M in 1,2-dichlorocthane solution) and hexamethylenediamine (0.1 M in NaOH solution) within a Pyrex glass microchip (treated with APTES) (see Figure 3.22). The membrane was used in a permeation study to examine diffusion of dissolved NH3 gas through the membrane to a phenolphthalein-containing solution [435]. The membrane can also be modified with horseradish peroxidase on only one side for carrying out an enzymatic reaction. H202 permeates through the membrane and enzymatically reacts with N-ethyl-N-(2-hydroxy-3-sulfopro-pyl)-m-toluidine and 4-AAP (4-aminoantipyrine.) to form a dye [435]. 

Acetic acid 5-Amino-2,4,6-triiodo-N-methylisophthalamic acid Adipoyl chloride Dimethylacetamide Hydrochloric acid Sodium hydroxide ... 

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