orabase has been researched along with tetrabutylammonium* in 2 studies
2 other study(ies) available for orabase and tetrabutylammonium
| Article | Year |
|---|---|
Preparation, characterization, and antibacterial property of carboxymethyl cellulose derivatives bearing tetrabutylammonium salt.
Carboxymethyl cellulose derivatives bearing tetrabutylammonium moieties (CMC-TBA) were synthesized by the acidification of carboxymethyl cellulose (CMC) followed by acid-base neutralization with tetrabutylammonium hydroxide. The products were identified by Fourier transform infrared (FT-IR), Topics: Anti-Bacterial Agents; Biocompatible Materials; Carboxymethylcellulose Sodium; Escherichia coli; Green Chemistry Technology; Humans; In Vitro Techniques; Magnetic Resonance Spectroscopy; Materials Testing; Microbial Sensitivity Tests; Quaternary Ammonium Compounds; Spectroscopy, Fourier Transform Infrared; Staphylococcus aureus | 2021 |
Exploitation of reactivity and selectivity in cellulose functionalization using unconventional media for the design of products showing new superstructures.
A variety of new cellulose solvents was investigated toward their potential as media for the functionalization of the polyglucane. Thus, mixtures of dimethyl sulfoxide (DMSO)/tetrabutylammonium fluoride trihydrate (TBAF), N-methylmorpholine-N-oxide (NMMNO)/DMSO, melts of LiClO(4).3H(2)O, and aqueous solutions of Ni(tren)(OH)(2) [tren = tris(2-aminoethyl)amine] were applied as reaction media. In case of the new solvent, DMSO/TBAF its usefulness for derivatization reactions including the etherification with sodium monochloroacetate and the acylation with vinyl esters of carbonic acids was studied. The structural features of the products were analyzed by means of (1)H NMR spectroscopy (after depolymerization or peresterification), (13)C NMR spectroscopy, and HPLC after complete hydrolytic chain degradation. The results were compared with those obtained from derivatives prepared using the solvent N,N-dimethylacetamide (DMAc)/LiCl and conventional, heterogeneous synthesis. It can be shown that in case of carboxymethylation reactions the reaction medium applied has a drastic influence both on the course of reaction and on the structural features of the products. A highly efficient tool was found to be atomic force microscopy (AFM), showing remarkable differences in the superstructures of the differentially synthesized derivatives. Topics: Acetylation; Carbohydrate Conformation; Carboxymethylcellulose Sodium; Cellulose; Dimethyl Sulfoxide; Microscopy, Atomic Force; Quaternary Ammonium Compounds; Solvents | 2001 |