scholarly journals Macroinitiators on the basis of new peroxide surface active monomers

2007 ◽  
Vol 1 (2) ◽  
pp. 83-86
Author(s):  
Ananiy Kohut ◽  
◽  
Roman Fleychuk ◽  
Orest Hevus ◽  
Stanislav Voronov ◽  
...  

The surface active properties of new peroxide maleic monomers were investigated. The regularities of their copolymerization with styrene were studied. Peroxide polymers containing ditertiary alkyl peroxide groups in side substituents of backbone as the prospective high-temperature free radical macroinitiators were synthesized.

2021 ◽  
Vol 640 (5) ◽  
pp. 052014
Author(s):  
A S Kaishev ◽  
N S Kaisheva ◽  
H N Gyulbyakova ◽  
E A Maslovskaya ◽  
V A Karpenko

1990 ◽  
Vol 32 (5) ◽  
Author(s):  
ThomasR. Neu ◽  
Thomas H�rtner ◽  
Karl Poralla

1984 ◽  
Vol 18 (11) ◽  
pp. 784-787 ◽  
Author(s):  
M. A. Chernyavskaya ◽  
V. V. Stefanovich ◽  
I. A. Sergeeva ◽  
A. S. Belova

1989 ◽  
Vol 56 (3) ◽  
pp. 487-494 ◽  
Author(s):  
Michael Wilson ◽  
Daniel M. Mulvihill ◽  
William J. Donnelly ◽  
Brian P. Gill

Summaryβ-Casein, was enzymically modified by incubation with plasmin to yield γ-caseins and proteose peptones. Whole γ-, γ1-, γ2/γ3-caseins and whole proteose peptone (pp) were isolated from the hydrolysate mixture. The time dependence of surface tension at the air-water interface of solutions of β-casein and its plasmin derived fragments, at concentrations of 10−1 to 10−4% (w/v) protein, pH 7.0, was determined, at 25 °C, using a drop volume apparatus. The ranking of the proteins with respect to rate of reduction of surface tension, during the first rate determining step, at 10-2% (w/v) protein, was γ2/γ3 ≫ pp > whole γ- > γ1- > β-casein. The ranking of the proteins with respect to surface pressures attained after 40 min (π40) was concentration dependent. γ2/γ3-Caseins were found to be very surface active, decreasing surface tension rapidly and giving a high π40. γ1 Casein decreased surface activity somewhat faster than β-casein, but generally reached a lower π40. Whole γ-casein reflected the properties of both γ1 and γ2/γ3-caseins. Proteose peptone was found to decrease surface tension rapidly during the initial rate determining step; it gave a relatively high π40 at a bulk phase concentration of 10−3% (w/v) protein, but, it was the least surface active protein at 10−1 and 10−2% (w/v) protein.


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