Premium
Alumina‐supported microwave synthesis of Cassia marginata seed gum‐ graft ‐polyacrylamide
Author(s) -
Singh V.,
Kumari P. L.,
Tiwari A.,
Pandey S.
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.32273
Subject(s) - polyacrylamide , grafting , thermogravimetric analysis , monomer , materials science , fourier transform infrared spectroscopy , acrylamide , saponification , copolymer , aqueous solution , nuclear chemistry , polymer chemistry , chemical engineering , chemistry , organic chemistry , polymer , composite material , engineering
In this article, we report the alumina‐supported, microwave (MW)‐induced synthesis of Cassia marginata seed gum‐ graft ‐polyacrylamide (MWS‐GP). No initiator or catalyst was required in the synthesis, and the conditions for the grafting were optimized by variation of the acrylamide concentration, MW power, and exposure time. At an identical monomer concentration, a higher level of grafting was observed in the solid‐supported method than under aqueous conditions (the MW‐assisted or redox‐initiated thermal method). The used alumina support was easily separated from MWS‐GP and reused for another three cycles without any significant loss in its efficiency as a solid support. MWS‐GP synthesized under optimum conditions was characterized with Fourier transform infrared spectroscopy, 13 C‐NMR, thermogravimetric analysis, and X‐ray diffraction, with C. marginata gum as a reference. The properties of MWS‐GP and its saponified derivative were studied to explore the applicability areas of the copolymer in hydrogel formation. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010