Microwave assisted synthesis of polyacrylamide grafted starch (St-g-PAM) and its applicability as flocculant for water treatment.
Polyacrylamide grafted starch (St-g-PAM) was made by a novel method of synthesis, involving combination of microwave radiation and a chemical free radical initiator (ceric ammonium nitrate) to initiate grafting reaction. This method (microwave assisted synthesis) is quick, highly reliable, reproducible and yields high quality product as compared to the conventional method (which uses a chemical free radical initiator alone to initiate the grafting reaction).The St-g-PAM grades synthesized were characterized by various physicochemical techniques. Further, its application as flocculant for wastewater treatment was investigated.
Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835 215, Jharkhand, India.
Sumit
S
Mishra
Ankita
A
Mukul
Gautam
G
Sen
Usha
U
Jha
D000180:Acrylic Resins / Q000138:chemical synthesis* / Q000737:chemistry*; D004602:Elements; D005427:Flocculation; D008855:Microscopy, Electron, Scanning; D008872:Microwaves; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry* / Q000648:ultrastructure; D013696:Temperature; D013818:Thermogravimetry; D014783:Viscosity; D018508:Water Purification / Q000379:methods*
D000180:Acrylic Resins; D004602:Elements; D013213:Starch