Study of the Influence of Reaction Conditions for Production of Cyanoethylcellulose from Cellulosic Material from Bamboo (<b><i>Dendrocalamus strictus</i></b>)

Khullar, Ritu; Varshney, V. K.; Naithani, Sanjay; Soni, P. L.

doi:10.1080/15440470801929069

Cited by 12 publications

(6 citation statements)

References 10 publications

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“…[16]. As a part of our ongoing programme on chemical modification of cellulose isolated from different sources [17][18][19][20], we were interested to study the derivatization of bamboo cellulose through substitution and grafting reactions. The present communication describes the optimization of the reaction conditions for grafting of acrylonitrile onto cellulosic material obtained from bamboo (Dendrocalamus strictus) using two-phase system by varying the reaction parameters such as the duration of soaking cellulosic material in CAN (ceric ammonium nitrate), concentration of CAN, polymerization time, temperature and concentration of acrylonitrile and studying their effects on %G (percent grafting) and %GE (percent grafting efficiency).…”

Section: Introductionmentioning

confidence: 99%

Grafting of acrylonitrile onto cellulosic material derived from bamboo (Dendrocalamus strictus)

Khullar¹,

Varshney²,

Naithani³

et al. 2008

Express Polym. Lett.

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Bamboo, a lignocellulosic biopolymer material, is of interest as feedstock for production of cellulose derivatives by chemical functionalization. Optimization of grafting of acrylonitrile onto cellulosic material (average Degree of Polymerization 816), isolated from bamboo (Dendrocalamus stictus) was performed by varying the process parameters such as duration of soaking of cellulosic material in ceric ammonium nitrate solution, ceric ammonium nitrate concentration, polymerization time, temperature of reaction and acrylonitrile concentration to study their influence on percent grafting and grafting efficiency. Graft copolymerization of acrylonitrile onto cellulosic material derived from bamboo (Dendrocalamus strictus) in heterogenous medium can be initiated effectively with ceric ammonium nitrate. The optimum reaction conditions obtained for grafting of acrylonitrile onto cellulosic material were: duration of dipping cellulosic material in ceric ammonium nitrate solution 1 hr, ceric ammonium nitrate concentration 0.02 M, acrylonitrile concentration 24.6 mol/anhydroglucose unit, temperature of reaction 40°C and polymerization time 4 hrs. The percent grafting for optimized samples is 210.3% and grafting efficiency is 97%. The characterization of the grafted products by means of FTIR and Scanning Electron Microscopy furnished the evidence of grafting of acrylonitrile onto the cellulosic material

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Section: Introductionmentioning

confidence: 99%

Grafting of acrylonitrile onto cellulosic material derived from bamboo (Dendrocalamus strictus)

Khullar¹,

Varshney²,

Naithani³

et al. 2008

Express Polym. Lett.

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“…Cyanoethylation using acrylonitrile is one of the most common methods of etherification due to the relatively low cost, simplicity, and ability of acrylonitrile to provide the desired properties to products. 9 Cellulose in bamboo was modified using poly(acrylonitrile) to obtain cyanoethylated cellulose with a degree of substitution of 2.2. 9 Similarly, sugar cane bagasse was cyanoethylated to develop thermoplastic films.…”

Section: ' Introductionmentioning

confidence: 99%

“…9 Cellulose in bamboo was modified using poly(acrylonitrile) to obtain cyanoethylated cellulose with a degree of substitution of 2.2. 9 Similarly, sugar cane bagasse was cyanoethylated to develop thermoplastic films. It was reported that cyanoethylated bagasse could be pressed into films above 140 °C.…”

Section: ' Introductionmentioning

confidence: 99%

“…For instance, cyanoethylation of cellulose is performed under alkaline conditions at temperatures of 40-60 °C, which could hydrolyze the proteins in DDGS. 9 Therefore, it is necessary to develop cyanoethylation conditions for DDGS that cause minimal damage to the proteins and carbohydrates and at the same time provide the desired level of thermoplasticity to be able to develop thermoplastic products from DDGS with good properties. In this research, conditions of cyanoethylation of DDGS were optimized and the modified DDGS was used to develop thermoplastic films.…”

Section: ' Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Highly Flexible Thermoplastic Films from Cyanoethylated Corn Distillers Dried Grains with Solubles

Reddy²,

Yan

et al. 2011

J. Agric. Food Chem.

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Corn distillers dried grains with solubles (DDGS) can be made into highly flexible thermoplastic films without the need for plasticizers. DDGS is an abundantly available coproduct of ethanol production that is inexpensive ($80-130/ton) compared to most of the polymers used for thermoplastic applications. In this research, oil-and-zein-free DDGS was cyanoethylated using acrylonitrile, and cyanoethylation conditions were optimized to obtain high percent weight gain of up to 42%. Cyanoethylated DDGS was characterized using (1)H NMR, FTIR, DSC, and TGA. Cyanoethylated DDGS was compression molded into thermoplastic films, and the tensile properties of the films were studied. It was found that DDGS films with elongation as high as 38% and strength of 14 MPa could be obtained without the use of any plasticizers. Alternatively, films with strength as high as 651 MPa but with relatively low elongation (2.5%) were obtained by varying the extent of cyanoethylation. This research showed that cyanoethylation could be a viable approach to develop biothermoplastics from biopolymers for applications such as packing films, extrudates, and resins for composites.

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“…As a part of our ongoing program on chemical modification of cellulose isolated from different sources,17–20 we were interested to study the derivatization of bamboo cellulose through substitution and grafting reactions. The present communication describes the optimization of hydroxypropylation of cellulose (average DP 816) derived from Dendrocalamus strictus bamboo, performed in isopropanol solvent medium by varying the process parameters such as concentration of NaOH and propylene oxide, temperature, and duration of reaction and studying their effect on the hydroxypropoxyl content.…”

Section: Introductionmentioning

confidence: 99%

Hydroxypropylation of cellulose isolated from bamboo (Dendrocalamus strictus) with respect to hydroxypropoxyl content and rheological behavior of the hydroxypropyl cellulose

Sharma

Varshney

Chauhan

et al. 2009

J of Applied Polymer Sci

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Bamboo, a lignocellulosic material, is a renewable source of interest as feedstock for production of cellulose derivatives by chemical functionalization. Optimization of hydroxypropylation of cellulosic material (average DP 816), isolated from bamboo (Dendrocalamus strictus) was, therefore, performed with respect to maximum percent hydroxylpropoxyl (% HP) contents under varying reaction conditions and studying their effect on the % HP. The optimized reaction conditions were aqueous NaOH concentration 22%, propylene oxide concentration 17.4 mol/AGU, temperature 50 C, duration of hydroxypropylation 4 h to yield hydroxypropyl cellulose of % HP 65.89. The g app of 1 and 2% solutions of the optimized product showed it to be non-Newtonian pseudoplastic.

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Study of the Influence of Reaction Conditions for Production of Cyanoethylcellulose from Cellulosic Material from Bamboo (Dendrocalamus strictus)

Cited by 12 publications

References 10 publications

Grafting of acrylonitrile onto cellulosic material derived from bamboo (Dendrocalamus strictus)

Grafting of acrylonitrile onto cellulosic material derived from bamboo (Dendrocalamus strictus)

Synthesis and Characterization of Highly Flexible Thermoplastic Films from Cyanoethylated Corn Distillers Dried Grains with Solubles

Hydroxypropylation of cellulose isolated from bamboo (Dendrocalamus strictus) with respect to hydroxypropoxyl content and rheological behavior of the hydroxypropyl cellulose

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