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Synthesis of graft copolymers of xyloglucan and acrylonitrile
Author(s) -
Mishra Anuradha,
Clark James H.,
Vij Annu,
Daswal Swati
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.973
Subject(s) - acrylonitrile , materials science , ceric ammonium nitrate , polyacrylonitrile , differential scanning calorimetry , grafting , copolymer , fourier transform infrared spectroscopy , monomer , polymer chemistry , aqueous solution , scanning electron microscope , nuclear chemistry , chemical engineering , chemistry , polymer , organic chemistry , composite material , engineering , thermodynamics , physics
Xyloglucan (XG), a water‐soluble food grade polysaccharide is reported as a substrate for the graft copolymerization of acrylonitrile (AN). XG was extracted from tamarind seed mucilage. Polymerization was initiated both by ceric ion in aqueous medium under N 2 atmosphere and with microwave (MW) irradiation. The progress of the reaction was monitored gravimetrically. The effect of different reaction parameters such as monomer concentration, level of ceric ammonium nitrate/HNO 3 (CAN) initiator, reaction time and temperature, and MW power on the percent grafting (PG) was studied. Grafting of polyacrylonitrile (PAN) onto XG was confirmed by Fourier‐transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and scanning electron microscope (SEM) techniques have been used to study the thermal and morphological changes in the materials. Copyright © 2007 John Wiley & Sons, Ltd.