On the hydrolysis of cellulose acetate in toluene/acetic acid/water system

Olaru, Niculae; Andriescu, Adrian; Olaru, Liliana

doi:10.1016/s0014-3057(00)00183-x

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…The ramie fibers were swelled with 18% solution of sodium hydroxide [20,21], acetic acid glacial [22,23], and pre-swelled with water, then with acetic acid glacial. The swelling conditions are listed in Table 1.…”

Section: Results Of Ft-irmentioning

confidence: 99%

A green route to prepare cellulose acetate particle from ramie fiber

Liu

Fan

et al. 2007

Reactive and Functional Polymers

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Section: Results Of Ft-irmentioning

confidence: 99%

A green route to prepare cellulose acetate particle from ramie fiber

Liu

Fan

et al. 2007

Reactive and Functional Polymers

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“…Second, the mobility of metal ions increased as the temperature increased. However, the adsorption capacity of EFB decreased with the increasing reaction temperature from 30 to 60 • C. The increasing temperature impelled the hydrolysis of the ester bond between the EDTA molecules due to the endothermic property of the hydrolysis reaction [39]. The ester bonds were disrupted, and the EDTA molecules were subsequently released from the surface of the EFB.…”

Section: Effect Of Temperature On Adsorptionmentioning

confidence: 99%

Study on the adsorption of Ca2+, Cd2+ and Pb2+ by magnetic Fe3O4 yeast treated with EDTA dianhydride

Meng

Zhang

et al. 2011

Chemical Engineering Journal

136

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“…It is well known that the rate of hydrolysis of cellulose esters in aqueous solution is controlled by the temperature and pH (Olaru, Andriescu, & Olaru, 2001). In order to determine the resistance of the ester bonds of the modified materials with EDTAD in aqueous solution, a hydrolysis study of ester bond of EMMB in function of time was carried out at pH 1, 2, 11, and 12 at 25°C.…”

Section: Hydrolysis Study Of Ester Bondmentioning

confidence: 99%

Removal of Ca(II) and Mg(II) from aqueous single metal solutions by mercerized cellulose and mercerized sugarcane bagasse grafted with EDTA dianhydride (EDTAD)

Júnior

Gurgel

Gil

2010

Carbohydrate Polymers

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a b s t r a c tIn a previous work, chemically modified cellulose (EMC) and sugarcane bagasse (EMMB) were prepared from mercerized cellulose (MC) and twice-mercerized sugarcane bagasse (MMB) using ethylenediaminetetraacetic dianhydride (EDTAD) as modifying agent. In this work we described in detail the modification of these materials in function of reaction time and EDTAD amount in the reaction media. The resistance of ester bond at pH 1, 2, 11, and 12 was also evaluated by FTIR. The results were used to model the hydrolysis process and a kinetic model was proposed. The modified materials (EMMB and EMC) were used to adsorb Ca 2+ and Mg 2+ ions from aqueous single solutions. The adsorption isotherms were developed at two pH values. These materials showed maximum adsorption capacities for Ca 2+ and Mg 2+ ions ranging from 15.6 to 54.1 mg/g and 13.5 to 42.6 mg/g, respectively. The modified material from sugarcane bagasse (EMMB) showed larger maximum adsorption capacities than modified material from cellulose (EMC) for both metals.

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On the hydrolysis of cellulose acetate in toluene/acetic acid/water system

Cited by 25 publications

References 5 publications

A green route to prepare cellulose acetate particle from ramie fiber

A green route to prepare cellulose acetate particle from ramie fiber

Study on the adsorption of Ca2+, Cd2+ and Pb2+ by magnetic Fe3O4 yeast treated with EDTA dianhydride

Removal of Ca(II) and Mg(II) from aqueous single metal solutions by mercerized cellulose and mercerized sugarcane bagasse grafted with EDTA dianhydride (EDTAD)

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