Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber

Graft copolymerization of methyl acrylate and acrylic acid monomers onto rubber wood fiber (RWF) was carried out by simultaneous radiation-induced technique. The parameters affecting the grafting reaction were investigated and the optimum conditions for both monomers obtained are as follows: impr...

Full description

Saved in:

Bibliographic Details
Main Author:	Jam, Saliza
Format:	Thesis
Language:	English English
Published:	2002
Subjects:	Graft copolymers Radiation chemistry - Technique
Online Access:	http://psasir.upm.edu.my/id/eprint/9367/1/FSAS_2002_12_A.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.9367
record_format	uketd_dc
spelling	my-upm-ir.93672012-05-16T02:15:16Z Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber 2002-03 Jam, Saliza Graft copolymerization of methyl acrylate and acrylic acid monomers onto rubber wood fiber (RWF) was carried out by simultaneous radiation-induced technique. The parameters affecting the grafting reaction were investigated and the optimum conditions for both monomers obtained are as follows: impregnation time, 16 hours; total dose, 30 kGy; methanol:water ratio, 3: 1 ; monomers concentration, 40 v/v% and sulphuric acid concentration, 0.1 mol/L. Fourier Transform Infrared (FTIR), Thermogravimetry Analysis (TGA), and Scanning Electron Microscope (SEM) analyses were performed to characterize graft copolymers. The structural investigation by X-ray diffraction (XRD) shows the degree of crystallinity of rubber wood fiber decreased with the incorporation of poly(methyl acrylate) and poly(acrylic acid) grafts which causes partial destruction of the inherent crystallinity in fiber. The sorption behavior of poly(acrylic acid)- grafted RWF resin toward some metal ions was investigated using a batch technique. The binding capacities ofeu, Fe, Zn, Cd and Pb ions were 0.379, 0.795, 0.189, 0.921 and 1.218 mmol/g, respectively. The sorption capacities of poly(acrylic acid)-grafted RWF resin were selectivity toward these metal ions is in the following order: Pb > Cd> Fe > Cu > Zn. Irradiated PP/poly(methyl acrylate)-grafted RWF composite has higher mechanical properties than PP/poly(methyl acrylate)-grafted RWF composite because of EB treatment of PP is a highly efficient technique of creating chemically active sites on PP matrix, which created a better coupling, and can be proved by SEM studies and TGA analysis. Generally, the addition of poly(methyl acrylate)-grafted RWF as coupling agent into the composites reduces the flexural and tensile properties, which, causes poor and incompatible dispersion, which leads to poor filler-matrix interfacial bonding. But, the addition of 1.0 wt % of P(MA)-g-RWF into the blend give an optimum value of flexural and tensile properties. Graft copolymers Radiation chemistry - Technique 2002-03 Thesis http://psasir.upm.edu.my/id/eprint/9367/ http://psasir.upm.edu.my/id/eprint/9367/1/FSAS_2002_12_A.pdf application/pdf en public masters Universiti Putra Malaysia Graft copolymers Radiation chemistry - Technique Faculty of Environmental Studies English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Graft copolymers Radiation chemistry - Technique
spellingShingle	Graft copolymers Radiation chemistry - Technique Jam, Saliza Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
description	Graft copolymerization of methyl acrylate and acrylic acid monomers onto rubber wood fiber (RWF) was carried out by simultaneous radiation-induced technique. The parameters affecting the grafting reaction were investigated and the optimum conditions for both monomers obtained are as follows: impregnation time, 16 hours; total dose, 30 kGy; methanol:water ratio, 3: 1 ; monomers concentration, 40 v/v% and sulphuric acid concentration, 0.1 mol/L. Fourier Transform Infrared (FTIR), Thermogravimetry Analysis (TGA), and Scanning Electron Microscope (SEM) analyses were performed to characterize graft copolymers. The structural investigation by X-ray diffraction (XRD) shows the degree of crystallinity of rubber wood fiber decreased with the incorporation of poly(methyl acrylate) and poly(acrylic acid) grafts which causes partial destruction of the inherent crystallinity in fiber. The sorption behavior of poly(acrylic acid)- grafted RWF resin toward some metal ions was investigated using a batch technique. The binding capacities ofeu, Fe, Zn, Cd and Pb ions were 0.379, 0.795, 0.189, 0.921 and 1.218 mmol/g, respectively. The sorption capacities of poly(acrylic acid)-grafted RWF resin were selectivity toward these metal ions is in the following order: Pb > Cd> Fe > Cu > Zn. Irradiated PP/poly(methyl acrylate)-grafted RWF composite has higher mechanical properties than PP/poly(methyl acrylate)-grafted RWF composite because of EB treatment of PP is a highly efficient technique of creating chemically active sites on PP matrix, which created a better coupling, and can be proved by SEM studies and TGA analysis. Generally, the addition of poly(methyl acrylate)-grafted RWF as coupling agent into the composites reduces the flexural and tensile properties, which, causes poor and incompatible dispersion, which leads to poor filler-matrix interfacial bonding. But, the addition of 1.0 wt % of P(MA)-g-RWF into the blend give an optimum value of flexural and tensile properties.
format	Thesis
qualification_level	Master's degree
author	Jam, Saliza
author_facet	Jam, Saliza
author_sort	Jam, Saliza
title	Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
title_short	Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
title_full	Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
title_fullStr	Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
title_full_unstemmed	Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber
title_sort	radiation-induced graft copolymerization of methyl acrylate and acrylic acid onto rubber wood fiber
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Environmental Studies
publishDate	2002
url	http://psasir.upm.edu.my/id/eprint/9367/1/FSAS_2002_12_A.pdf
_version_	1747810944393674752

Radiation-Induced Graft Copolymerization of Methyl Acrylate and Acrylic Acid onto Rubber Wood Fiber

Similar Items