Study of the Rheological Properties of Aqueous Solutions of Porphyrin Polymers

2017 ◽  
Vol 87 (12) ◽  
pp. 3097-3101
Author(s):  
E. V. Alopina ◽  
T. S. Usacheva ◽  
T. A. Ageeva ◽  
O. I. Koifman
2009 ◽  
Vol 42 (5) ◽  
pp. 1726-1732 ◽  
Author(s):  
Sami Hietala ◽  
Satu Strandman ◽  
Paula Järvi ◽  
Mika Torkkeli ◽  
Katja Jankova ◽  
...  

2011 ◽  
Vol 115 (12) ◽  
pp. 2759-2764 ◽  
Author(s):  
Keith M. Krise ◽  
Angela A. Hwang ◽  
David M. Sovic ◽  
Bratoljub H. Milosavljevic

2009 ◽  
Vol 56 (11) ◽  
pp. 591-599 ◽  
Author(s):  
Rheo Takahashi ◽  
Madoka Hirashima ◽  
Yoko Tanida ◽  
Katsuyoshi Nishinari

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Katarzyna Lewandowska ◽  
Aldona Dąbrowska ◽  
Halina Kaczmarek

AbstractThe new blends composed of natural polysaccharide - pectin and synthetic water soluble polymer - poly(vinyl alcohol) (PVA) are attractive materials due to their biocompatibility, non-toxicity and biodegradability. In this work the rheological properties of aqueous solutions of pectin (PEC), poly(vinyl alcohol) and their mixtures at various weight ratios (70/30, 50/50, 30/70) have been investigated. Flow measurements were carried out using a rotary viscometer with concentric cylinder at different temperatures (20-70 ºC) and shear rates (24- 1234 s-1). The flow parameters and energy of activation have been calculated from the flow curves and Arrhenius plots, respectively. It was found that studied polymer solutions exhibited non-Newtonian behavior, moreover, the flow properties were dependent on the blend composition. The result show that practically there was no thixotropy in studied system but some interactions between PVA and pectin in water occurred.


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