Engineering Cross-linked Biodegradable Polymeric Network For Water Purification

Rajpoot, Anubhav (2018) Engineering Cross-linked Biodegradable Polymeric Network For Water Purification. Masters thesis, Indian Institute of Science Education and Research Kolkata.

PDF (MS dissertation of Anubhav Rajpoot (13MS072)) 13MS072.pdf - Submitted Version Restricted to Repository staff only Download (2MB)

Abstract

The main objective of this study is to develop an effective route via photo click reaction under ultraviolet (UV) irradiation at wavelength 365 nm for growth of material for better adsorption and release of waste dyes. With this keeping in mind C1 and C2B were synthesized. All the compound were characterized by ¹H NMR, matrix assisted laser desorption/ ionization – time of flight (MALDI-TOF), Thermogravimetric analysis (TGA), scanning electron microscopy (SEM), cryo-SEM and solid state Fourier transform infrared (FTIR) spectroscopy. The phase transition of polymer C1 and gelation of crosslinked polymer C2B were characterized by rheometric analysis. Ultraviolet (UV) spectroscopy was done to analysis the adsorption of organic water soluble toxic dyes and their corresponding release during the recycle of polymer material. We have developed a class of neutral and thiol-functionalized POFs. The Photoclicked system was not only effective but also cost efficient. The POF derived from alkyne polymer showed maximum efficiency for the removal of phenolphthalein-derived amphiphilic dye molecules. The thiol-functionalized POF system responded positively when tested for mercury. The toxicants were removed efficiently via sorption. With these, POF network has the potential to dominate the industrial sector with its application as the remover and purifier of the waste and harmful chemicals generated. The work in our group is in progress toward growth of material with improved efficiency, compressibility, and solvent selectivity from organic to aqueous and vice versa in terms of swellability.

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