Pentaerythritol tetrakis

The oxygen balance -88.82 % (calculated according to the production CO2) The nitrogen content 36 % 

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Pentaerythritol Tetrakis[tris(difluoramino) methyl Ether] (FA-PE). C9H8F24N1204 mw... 

Pentaerythritol Tetralactate Tetranitrate [Pentaerythritol Tetrakis (2-nitroxypropionate)]. 

For instance, adamantanoid architectures are formed on the self-assembly of tetradentate XB donors with tetradentate XB acceptors, both the complementary tectons alternating at the nodes of the network (this is the case in the complex CBr4/Et4N+Cl and its bromide and iodide analogues [192], in the complex tetrakis(4-pyridyl)pentaerythritol/tetrakis(4-iodiotetralluorophenyl)pentaerythritol [195], and in other systems [197]). 

A flame-dried 1-liter reactor was charged with ethoxylated pentaerythritol tetrakis-(3-mercaptopropionate) (46.3 mmol), the step 1 product (185 mmol), and 300 ml of dioxane and then treated with 2,2 -azobisisobutyronitrile (4 mmol). The mixture was then heated to 70°C for 36 hours and concentrated. The residue was purified by column chromatography with hexane/acetone, 30 70, respectively, and the product isolated as a dark orange viscous liquid. 

The structure for the step 2 reagent, ethoxylated pentaerythritol tetrakis(3-mercaptopropionate), (I), is illustrated below. 

A typical formulation for a polypropylene (PP) film used for wrapping biscuits would be PP 100 pph pentaerythritol tetrakis[3-(3,5-di-tertbutyl-4-hydroxyphenyl) propionate] 0.1 pph phosphorous acid, tris(2,4-di-tert-butylphenyl)ester 0.1 pph emcamide 0.05 pph. Nucleators, such as substituted benzylidene sorbitols, can be added to improve the clarity of PP and LDPE (see Eig. 10.4). Oriented polypropylene (OPP) films are also available where a higher transparency is required with improved strength. 

Irganox 1010 Pentaerythritol tetrakis(3-(3,5-di-rerr-butyl-4-hydroxyphenyl)propionate)... 

Other types of curing systems for allyl-terminated urethane polymers were described by Kehr and Wszolek (176). Polyether and polyester urethane-ene systems were prepared by reaction of polyester or polyether dlols with allyl isocyanate or by reaction of isocyanate-terminated prepolymers with allyl alcohol. These urethane-ene systems can be cured by branched monomeric polythiols such as pentaerythritol tetrakis(thioglycolate) C(CH20C0CH2SH)4. 

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