English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The radiolytic stabilities of three phenylated analogs of  N,N,N ’, N ’-tetraoctyl diglycolamide (TODGA) were investigated: 2-(2-(di- n -octylamino)-2-oxoethoxy)- N,N -di- n -octyl-2-phenylacetamide (PhTODGA), which has a phenyl substituent bound to a central methylene, 2-(2-(di- n -octylamino)-2-oxo-1-phenylethoxy)- N,N -di- n -octylpropanamide (PhMeTODGA), which also contains a methyl substituent bound to the methylene on the other side of the ether moiety, and, 2-(2- N-n -hexyl- N -phenylamino)-2-oxoethoxy)- N-n -hexyl- N -phenylacetamide (DHDPDGA), which has phenyl substituents located on the amide groups instead of the central methylenes. The objective of Part I of this series of papers covers was to evaluate the contribution of the phenyl group to the radiolytic stability of these diglycolamides when irradiated in a)  n -dodecane, and b)  n -dodecane in the presence of a nitric acid-containing aqueous phase. The results indicate that the presence of the phenyl group decreases the overall radiolytic stability compared to unsubstituted TODGA. However, the results also indicate that the phenyl groups interact with nitric acid in a cooperative fashion that enhances the radiation stability of the phenylated diglycolamide (DGA) derivatives in the presence of a nitric acid-containing aqueous phase compared to irradiation in only  n -dodecane. The results are consistent with the hypothesized formation of nitric acid-phenylated DGA complexes in the  n -dodecane phase that are significantly more stable with respect to gamma irradiation, compared to the phenylated DGA molecules alone.

Gamma Radiolysis of Phenyl-Substituted TODGAs: Part I