Analysis and Characterization of Microwave Irradiation-Induced Graft Copolymerization of Methyl Methacrylate onto Delignified Grewia Optiva Fiber

Grafting of methyl methacrylate (MMA) onto delignified Grewia optiva fiber using ascorbic acid/H 2 O 2 as an initiator was carried out under microwave irradiation. The effects of varying the microwave power, exposure time, and concentration of initiator and monomer of graft polymerization were studi...

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Bibliographic Details
Published in:International journal of polymer analysis & characterization 2014-02, Vol.19 (2), p.115-123
Main Authors: Singha, Amar Singh, Thakur, Bhanu Priya, Pathania, Deepak
Format: Article
Language:English
Subjects:
Ascorbic acid
Copolymers
Delignification
Fibers
Fourier transforms
FT-IR
Graft copolymerization
Grafting
Initiators
Microwave irradiation
Microwaves
Monomers
Polymerization
Polymethyl methacrylates
Scanning electron microscopy
TGA
Thermogravimetric analysis
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Summary:Grafting of methyl methacrylate (MMA) onto delignified Grewia optiva fiber using ascorbic acid/H 2 O 2 as an initiator was carried out under microwave irradiation. The effects of varying the microwave power, exposure time, and concentration of initiator and monomer of graft polymerization were studied to obtain maximum grafting percentage (26.54%). The experimental results showed that the optimal conditions for grafting were: exposure time, 10min; microwave power, 110 W; ascorbic acid concentration, 3.74mol/L × 10 −2 ; H 2 O 2 concentration, 0.97mol/L × 10 −1 ; monomer concentration, 1.87mol/L × 10 −1 . The graft copolymers were characterized by Fourier transform-infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA).
ISSN:1023-666X
1563-5341
DOI:10.1080/1023666X.2014.872817