Synthesis and characterization of cellulose based graft copolymers with binary vinyl monomers for efficient removal of cationic dyes and Pb(II) ions

2019 ◽  
Vol 26 (6) ◽  
Author(s):  
Rajesh Kumar ◽  
Rajeev Kr. Sharma ◽  
Anirudh P. Singh
1989 ◽  
pp. 294-310 ◽  
Author(s):  
John J. Meister ◽  
Damodar R. Patil ◽  
Cesar Augustin ◽  
James Z. Lai

1985 ◽  
Vol 12 (S19851) ◽  
pp. 51-60 ◽  
Author(s):  
Yuya Yamashita ◽  
Hsi C. Tsai ◽  
Yasuhisa Tsukahara

1958 ◽  
Vol 31 (4) ◽  
pp. 819-828 ◽  
Author(s):  
F. M. Merret

Abstract The solubility of graft copolymers prepared from rubber and vinyl monomers follows a general pattern whereby one of the constituents can be insolubilized while the other remains soluble, the compound forming a stable sol which is largely unaffected by heat or ionic materials at suitable ratios of solvent to precipitant. The onset and flocculation of the sol are such that the graft copolymer can be completely separated from either free constituent homopolymer. This insolubilization of the rubber trunk chain by addition of methanol to a benzene solution of the coploymer has been followed by the changes in the intrinsic viscosity and turbidity, which show that the collapse of the rubber chain continues to a point beyond where the molecularly equivalent free rubber would be precipitated. This period also marks the major increase in turbidity. Osmotic data show that μ-values for the grafted copolymers of rubber are the same as for rubber itself, thus supporting similar assumptions made in the application of the theory of the equilibirium swelling of crosslinked rubber.


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