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You searched for: Journal Carbohydrate polymers Remove constraint Journal: Carbohydrate polymers Publication Year 2009 Remove constraint Publication Year: 2009 Source 2009 v.75 no.1 Remove constraint Source: 2009 v.75 no.1 Subject cellulose Remove constraint Subject: cellulose
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1. Adsorption of Cu(II) and Pb(II) onto diethylenetriamine-bacterial cellulose

Author:
Shen, Wei; Chen, Shiyan; Shi, Shuaike; Li, Xin; Zhang, Xiang; Hu, Weili; Wang, Huaping
Source:
Carbohydrate polymers 2009 v.75 no.1 pp. 110-114
ISSN:
0144-8617
Subject:
cellulose; bacteria; adsorption; copper; lead; heavy metals; wastewater treatment; adsorbents; sorption isotherms; synthesis; pH; ions; reaction kinetics
Abstract:
... Diethylenetriamine-bacterial cellulose (EABC) was synthesized by amination with diethylenetriamine on bacterial cellulose (BC). Its adsorption properties for Cu(II) and Pb(II) were investigated. The parameters affecting the metal ions adsorption, such as contact time, solution pH, and initial metal ions concentration have been investigated. The adsorption kinetics and adsorption isotherms were fur ...
DOI:
10.1016/j.carbpol.2008.07.006

2. Dissolution of cellulose with NMMO by microwave heating

Author:
Doganand, Hacer; Hilmioglu, Nilufer Durmaz
Source:
Carbohydrate polymers 2009 v.75 no.1 pp. 90-94
ISSN:
0144-8617
Subject:
cellulose; microwave treatment; heat treatment; crystal structure; polymerization; cellulosic fibers; temperature
Abstract:
... Environmentally friendly microwave heating process was applied to the dissolution of cellulose in N-methylmorpholine-N-oxide (NMMO) with 105-490 W and 2450 MHz microwave energy until the dissolution completed. Microwave heating caused the decrease in the dissolution time and energy consumption. Cellulose/NMMO/water solutions with different cellulose concentrations were converted to the membrane to ...
DOI:
10.1016/j.carbpol.2008.06.014

3. Poly(ethyl acrylate) surface-initiated ATRP grafting from wood pulp cellulose fibers

Author:
Zampano, Giovanni; Bertoldo, Monica; Bronco, Simona
Source:
Carbohydrate polymers 2009 v.75 no.1 pp. 22-31
ISSN:
0144-8617
Subject:
cellulose; polymerization; wood pulp; cellulosic fibers; acrylic acid; glass transition temperature
Abstract:
... Wood pulp cellulose fibers were functionalized by partial esterification of the superficial -OH groups with α-bromoisobutyryl bromide (BIBB) under mild (room temperature and THF as solvent) and harsh (85 °C and pyridine as solvent) conditions. Samples were characterized by ATR spectroscopy, EDXS, elemental analysis and SEM. Functionalization degrees was varied up to 2% mol Br/OH (by elemental anal ...
DOI:
10.1016/j.carbpol.2008.06.005

4. Preparation of cellulose-starch composite gel and fibrous material from a mixture of the polysaccharides in ionic liquid

Author:
Kadokawa, Jun; Murakami, Masa-aki; Takegawa, Akihiko; Kaneko, Yoshiro
Source:
Carbohydrate polymers 2009 v.75 no.1 pp. 180-183
ISSN:
0144-8617
Subject:
composite polymers; gels; cellulose; starch; crystal structure; solvents
Abstract:
... This paper reports the preparation of a cellulose-starch composite gel from an ionic liquid solution. The gel was obtained by keeping the homogeneous mixture of cellulose (10% w/w) and starch (5% w/w) in 1-butyl-3-methylimidazolium chloride (BMIMCl) for several days at room temperature and characterized by elemental analysis, X-ray diffraction, and thermal gravimetric analysis. Furthermore, the pr ...
DOI:
10.1016/j.carbpol.2008.07.021

5. Synthesis and antioxidant activity evaluation of a novel cellulose hydrogel containing trans-ferulic acid

Author:
Trombino, Sonia; Cassano, Roberta; Bloise, Ermelinda; Muzzalupo, Rita; Tavano, Lorena; Picci, Nevio
Source:
Carbohydrate polymers 2009 v.75 no.1 pp. 184-188
ISSN:
0144-8617
Subject:
hydrocolloids; ferulic acid; chemical structure; polymerization; swelling (materials); pH; antioxidant activity; free radical scavengers; lipid peroxidation; cellulose; acrylic acid; drug delivery systems
Abstract:
... In the present work, we report the synthesis of cellulose hydrogel containing ferulic moieties and the evaluation of its antioxidant and scavenger activity. Acrylic groups were inserted onto cellulose backbone by a heterogeneous synthesis to produce two cellulose monomers with different degree of substitution (DS). The radical copolymerization of acrylcellulose (AcrC) with N,N-dimethylacrylamide ( ...
DOI:
10.1016/j.carbpol.2008.05.018