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Studies of Cu(II)–IO 4 − initiated graft copolymerization of methyl methacrylate from defatted pineapple leaf fibres
Author(s) -
Tripathy Pratap C,
Misra Manjusri,
Parija Sanghamitra,
Mishra Supriya,
Mohanty Amar K
Publication year - 1999
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199909)48:9<868::aid-pi230>3.0.co;2-b
Subject(s) - thermogravimetric analysis , copolymer , methyl methacrylate , polymer chemistry , thermal stability , nuclear chemistry , periodate , grafting , chemistry , materials science , organic chemistry , polymer
A study of the graft copolymerization of methyl methacrylate (MMA) from defatted pineapple leaf fibre (PALF) was carried out in the temperature range 45–55 °C, using a copper sulphate (CuSO 4 ) and potassium periodate (KIO 4 ) combination as initiator in an aqueous medium. Effects of variation of time and temperature, concentration of Cu(II), KIO 4 and MMA, the amount of PALF, and also the effects of some inorganic salts and organic solvents on the percentage of graft yield have been investigated. On the basis of experimental findings, a reaction mechanism is proposed. FTIR spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy of the original defatted PALF and MMA grafted PALF have been carried out. The thermal stability of PALF is improved through grafting. © 1999 Society of Chemical Industry