Cellulose benzoate

Aminoethylcellulose Perchlorate Vol l,p A204 R Cellulose Benzoates ate esters of cellulose benzoic acid. The mono- and di-benzoates were prepd by treating cellulose in alk soln with benzoyl chloride. Tri-benzoate was reported to have been prepd by the action of benzoyl chloride pyridine on cellulose at 110-30° in the presence of nitrobenzene. The prod is sol in chlf nitrobenz(Ref 6)... 

Cellulose Benzoates(Nitrates). Sendo Kondo (Ref 2) treated cellulose monobenzoate at 18-20° with mixed acids of different percentage compn and obtd cellulose mononitrate- dinitrate mononitrobenzoate. The expl props of these nitrates are similar to those of normal NC, but they are more stable, less hygro, less sol in eth-alc, and burn at a slower rate than NC Cellulose Nitrates. See following item, discussed separately... 

FIGURE 3 The chemical structures of cellulose benzoate, amylose benzoate, and carbamate derivatives. (From Ref. 32.)... 

Cellulose acid phthalate, I, 320 Cellulose acid succinate, I, 320 Cellulose benzoate, I, 320 Cellulose carbamates, N-derivatives, I, 321... 

Fig. 5. Sedimentation coefficient (s] vs. molecular weight M for cellulose esters 1 cellulose carbanilate in ethyl acetate 2 cellulose butyrate in methyl ethyl ketone ) 3 cellulose mono-phenylacetate in benzene 4 cellulose diphenyl phosphonocarbamate in dioxane ) 5 cellulose benzoate in dioxane ...

Fig. 30. Plot of (nj/lnj of cellulose ether and ester solutions vs. refractive index of solvent ) 1 2-cyanoethyl-trityl-cellulose, 2 cellulose monophenylacetate, 3 ethyl ceBulose, 4 2-cyanoethyl-acetylcellulose and 5 cellulose benzoate...

Cyclic anhydrides like acetic, phthalic, and succinic anhydride have been widely used in cellulose modifications to produce different cellulose derivatives such as cellulose acetate, cellulose butyrate, cellulose benzoate, cellulose phthalate, and cellulose with or without catalyst, which have several applications such as water absorbents for soil in agriculture, drug delivery system, and as thermoplastic. 

Cellulose derivatives alone are rather difficult to use as CSPs in HPLC because the derivatives do not have sufficient strength for high compression during HPLC. This defect can be overcome by coating them on macroporous silica gel. In 1984, Daicel and my group also found that cellulose benzoate coated on silica gel affords an attractive CSP [37, 38], and the ability as a CSP is much improved by... 

Second virial coefficient of hydroxypropyl cellulose benzoate... 

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