Synthesis, characterization and performance studies of mixed-matrix poly(vinyl chloride)-bentonite ultrafiltration membrane for the treatment of saline oily wastewater

2018 ◽  
Vol 116 ◽  
pp. 703-717 ◽  
Author(s):  
Tausif Ahmad ◽  
Chandan Guria ◽  
Ajay Mandal
Keyword(s):  
Vinyl Chloride ◽  
Performance Studies ◽  
Ultrafiltration Membrane ◽  
Oily Wastewater ◽  
Mixed Matrix ◽  
Poly Vinyl Chloride ◽  
And Performance

Preparation and characterization of emulsion poly(vinyl chloride) (EPVC)/TiO2 nanocomposite ultrafiltration membrane

2014 ◽  
Vol 472 ◽  
pp. 185-193 ◽  
Author(s):  
Hesamoddin Rabiee ◽  
Mohammad Hossein Davood Abadi Farahani ◽  
Vahid Vatanpour
Keyword(s):  
Vinyl Chloride ◽  
Ultrafiltration Membrane ◽  
Poly Vinyl Chloride

scholarly journals The Morphology and Performance of Poly(Vinyl Chloride) Containing Melamine Schiff Bases against Ultraviolet Light

Molecules ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 803 ◽  
Author(s):  
Gamal El-Hiti ◽  
Mohammad Alotaibi ◽  
Ahmed Ahmed ◽  
Basheer Hamad ◽  
Dina Ahmed ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Vinyl Chloride ◽  
Schiff Bases ◽  
Average Molecular Weight ◽  
Hydroxyl Group ◽  
Force Microscopy ◽  
Polymeric Surface ◽  
Atomic Force ◽  
Poly Vinyl Chloride ◽  
And Performance

Five Schiff bases derived from melamine have been used as efficient additives to reduce the process of photodegradation of poly(vinyl chloride) films. The performance of Schiff bases has been investigated using various techniques. Poly(vinyl chloride) films containing Schiff bases were irradiated with ultraviolet light and any changes in their infrared spectra, weight, and the viscosity of their average molecular weight were investigated. In addition, the surface morphology of the films was inspected using a light microscope, atomic force microscopy, and a scanning electron micrograph. The additives enhanced the films resistance against irradiation and the polymeric surface was much smoother in the presence of the Schiff bases compared with the blank film. Schiff bases containing an ortho-hydroxyl group on the aryl rings showed the greatest photostabilization effect, which may possibly have been due to the direct absorption of ultraviolet light. This phenomenon seems to involve the transfer of a proton as well as several intersystem crossing processes.

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