Clay Research
  • Year: 2016
  • Volume: 35
  • Issue: 1

Polyacrylamide and Starch Grafted Polyacrylamide Based Nanoclay Polymer Composites for Controlled Release of Nitrogen

  • Author:
  • Sonalika Sahoo, K.M. Manjaiah, S.C. Datta, Rajesh Kumar1
  • Total Page Count: 9
  • Page Number: 16 to 24

1Division of Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110012

Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110012

*Corresponding Author Email: manjaiah@iari.res.in

Online published on 17 February, 2017.

Abstract

Nanoclay polymer composites (NCPCs) based on cross linked polyacrylamide(PAM) and starch grafted polyacrylamide (St-PAM) were prepared with variable clay percentage (6%, 12%, 18% and 24% of monomer). The NCPCs were characterized by FTIR (Fourier transform infrared spectroscopy) and X-ray diffraction (XRD). Increased clay doping above 18% in NCPCs resulted in incomplete dispersion and exfoliation of clay in polymer matrix. Clay doping above 18% did not further decreased the urea release from NCPCs. Both PAM and St-PAM based NCPCs had similar slow urea release property.

Keywords

Nanoclay polymer composite, Polyacrylamide, Starch grafted polyacrylamide, Urea