Synthesis of Diallyl dimethyl ammonium chloride grafted polyvinyl pyrrolidone (PVP-g-DADMAC) and its applications

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2021-01, Vol.263, p.114750, Article 114750
• Main Authors: Mehta, Anurag, Pandey, J.P., Sen, Gautam
• Format: Article
• Language: English
• Subjects: Ammonium chloride; Beneficiation; Cationic polymerization; Chlorides; Diallyl dimethyl ammonium chloride; Electron micrographs; Flocculation; Graft copolymers; Grafting; Multi wall carbon nanotubes; Polyacrylamide; Polyvinyl pyrrolidone; Tubes; Viscosity measurement; Wastewater treatment
• ISSN: 0921-5107; 1873-4944
• DOI: 10.1016/j.mseb.2020.114750

[Display omitted] •Graft co-polymer of DADMAC has been synthesized by microwave assisted synthesis.•The novel graft co-polymer was characterized by various phycio- chemical characterization techniques namely FTIR, Elemental analysis, SEM, TGA, DTA and XRD.•The general flocculation efficacy of the novel graft co-polymer was studied in various suspensions namely (1%) coal fine, (0.25%) kaolin, municipal waste water, river water and in (0.25%) multi-walled carbon nano-tubes (MWCNT) towards application as ‘Nano-hunters’. The search for a sustainable and nontoxic polymeric product has fired an intense research in the field of graft copolymers. This study endeavor to create a polyacrylamide free novel flocculant which showed efficient behavior towards water and wastewater treatment and for mineral ore beneficiation. We synthesized the novel graft copolymer - Poly Diallyl Dimethyl Ammonium Chloride (DADMAC) grafted polyvinyl pyrrolidone (PVP-g-pDADMAC) via graft polymerization route by microwave assisted method. The synthesized novel cationic graft co-polymer has been characterized by elemental analysis, FTIR spectroscopy, intrinsic viscosity measurement, molecular weight determination, and scanning electron micrograph (SEM), taking PVP as reference. The effects of reaction parameters onto the percentage grafting have been studied. The applicability of these grafted polymers as flocculant for the treatment of municipal sewage waste water as well as for mineral ore beneficiation and for suppression of nanopollutant like multi-walled carbon Nano-tubes (MWCNTs) (as nano scavenger) from water systems were also investigated.