✍ Scribed by Jenöszita; C. S. Marvel
No coin nor oath required. For personal study only.
Poly‐2,2′‐(m‐phenylene)‐5,5′‐bisbenzimidazole has been alkylated with propanesultone to yield polymers which are readily dyed with basic dyes. Propanesultone has been used to convert cellulose, starch, phenolformaldehyde resin, and various vinyl copolymers into hydrophilic materials which dye readily or act as ion exchange resins.^1–5^ It seemed likely it would react with a polybenzimidazole to make the polymer more water absorptive and readily dyeable with basic dyes. Hence this work was undertaken.
📜 SIMILAR VOLUMES
A new method of interpreting gas-chromatographic (GC) data for determining solvents for thermally stable polymers has been developed. An equation is derived for molar Gibbs energy of sorption in terms of chromatographically measured parameters. The polymer used in this study is poly(5,5'-bibenzimida
The reactivity of 1,3-propanesultone with adenine, adenosine, and NAD+ was studied in order to prepare N6-(3-sulfonatopropy1)-NAD+ (3b), a new NAD' derivative substituted at the purine moiety with substantial coenzyme activity for several dehydrogenases. The regiochemistry of the alkylation at the p