Inert gas atmosphere nitrogen

Most of the cationic polymerizations and the polymer syntheses thereby, discussed in Chapters 4 and 5, may be carried out conveniently under the dry and inert gas atmosphere (nitrogen or argon) by the so-called syringe technique. Except for highly elaborated kinetic experiments, stringent high-vacuum technique is not required to maintain the control of the polymerizations and polymer architectures. 

Oligosulphoneketon, oligosulphone, oligoketon synthesis was conducted by means of high temperature polycondensation in aprotonic dipolar solvent medium - dimethylsulfoxide (DMSO) - within inert gas atmosphere (nitrogen). 

Fabricated by pyrolysis at a high temperature (700, 1000, or 1200°C) in an inert-gas atmosphere (nitrogen or argon). 

Prepare a liposome suspension, containing PE, at a total-lipid concentration of 5mg/ml in 0.1M sodium phosphate, 0.15M NaCl, pH 6.8. Maintain all lipid-containing solutions under an inert gas atmosphere. Degas all buffers and bubble them with nitrogen or argon prior to use. 

In order to reduce this effect, the samples should be protected from sunlight by wrapping the sample bottles in appropriate material. When dealing with oxygen sensitive compounds, the reactions should be performed under nitrogen or other inert gas atmosphere. 

The alkylation is achieved using an acid activated clay catalyst (73). The reaction is performed in nitrogen atmosphere. Namely, nitrogen gas atmosphere or other inert gas atmospheres, in contrast to air gas atmosphere, suppress the formation of products that deactivate the clay catalyst. 

Goldbeck, C. G., Turel, S. P., Rodden, C. J. Determination of oxygen and nitrogen after melting in an inert gas atmosphere with impulse heating. Anal. Chem. 40, 1393... 

A tank of butane (containing both liquid and vapor at 60° F) has a gage pressure of 15 psig. What percentage of the total volume of vapor is occupied by an inert gas, if atmospheric pressure is 14,5 psia If the inert gas is nitrogen, what axe the weight fractions in the vapor ... 

Precursors that release stoichiometric silicon ifitride in an inert gas atmosphere and which therefore avoid segregation of silicon metal can be obtained by coammonolysis of dichlorosilane and trichlorosilane. - Such polymers exhibit nitrogen silicon ratios greater than 4 3. Compared to [SiH2NH] copolymers [SiH2NH] ,[SiH(NH)i 5] are more highly cross-linked, but in contrast to [Si(NH)2l , they are processable. 

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