As can be seen in Figure 6 , an increasing trend in the viscosity of St-g-PNIPAM-P0 was implied as the salt concentration increased.
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Thermo-Responsive Starch-g-(PAM-co-PNIPAM): Controlled Synthesis and Effect of Molecular Components on Solution Rheology.
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The sentences
For copolymers containing a high mole ratio of NIPAM (50% for example), a decreasing trend can be observed with the increase of salt concentration.