Homogeneous Grafting of Bagasse Cellulose in Ionic Liquid

Chen

2013

AMR

Cellulose nanocomposite is one of the most fascinating materials with broad applications. In this work, cellulose-magnetite nanocomposite has been prepared by dispersion of magnetite nanoparticles in a homogenous ionic liquid solution of grafted cellulose. Bagasse cellulose was first grafted with polymethacrylic acid in 1-butyl-3-methylimidazolium, and then fabricated with Fe3O4 nanoparticles during the homogeneous media. The obtained nanocomposite contained high content of iron due to the clelation of the grafted cellulose and Fe3O4 nanoparticles. It also exhibited superparamagnetic behavior with 8.606 emu/g saturation magnetizations. The cellulose-magnetite nanocomposite will be potential for the development of functional cellulose and protective materials for electromagnet radiation or microwaves.

Section: Preparation Of Fe 3 O 4 /Cellulose Nanocompositesmentioning

confidence: 99%

Synthesis of a Cellulose-Magnetic Nanocomposite in Ionic Liquid

Chen

2013

AMR

“…Therefore, MW irradiation presented more efficiency during homogeneous grafting. Characterization FT-IR spectroscopy, SEM and the thermal stability were carried out to characterize the grafted cellulose copolymer [7].…”

Section: Advances In Chemical Engineering IImentioning

confidence: 99%

Homogeneous Modification of Sugarcane Bagasse Cellulose with 2-(Dimethylamino)ethylmethacrylate in Ionic Liquid under Microwave Irradiation

Chang

et al. 2012

AMR

Self Cite

A cellulose grafted copolymer was synthesized by homogeneous grafting 2-(Dimethylamino)ethylmethacrylate (DMAEMA) onto the sugarcane bagasse cellulose under microwave irradiation. Cellulose was dissolved in 1-butyl-3-methylinidazolium chloride ionic liquid ([Bmim]Cl) to form a homogeneous solution. The grafting polymerization was then initiated by potassium persulfate in the presence of N,Nˊ-methylenebisacrylamide as a crosslinker. Compared with the traditional thermal heating method, microwave irradiation had a drastic reduction of reaction time and an increased grafted efficiency. The characterization of the graft copolymer was confirmed by Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM), and Thermogravimetric analysis (TGA). Moreover, the homogenous reaction media applied can be carried out in completely recycled ionic liquid, and the grafted cellulose products have a potential application in wastewater anion absorption.

“…Recently, ionic liquid has been received much attention. It is known as a green reagent since it has excellent solubility of cellulose, low volatility, high temperature resistance and recyclability [1] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Pineapple Leaf Cellulose Membrane

Zhu

Wang

et al. 2014

AMR

Self Cite

In this study, the pineapple leaf cellulose membrane was prepared after being dissolved in ionic liquid (1-butyl-3-methylimidazolium chloride ([Bmim]Cl)) and high pressure microfluidization process. The chemical morphology and structure of cellulose membrane were measured by scanning electron microscope (SEM), fourier transformed infrared spectra (FT-IR), extension test and thermogravimetric analysis (TGA). Resules indicated that after microfluidizer, the surface of membrane became smoother, however the tensile strength and thermal stability of cellulose membrane was decreased due to the shearing action of microfluidizer. This would broad the application of cellulose membrane widely.