Effects of co-monomers

In this study, the VPTT of the poly(NIPAM) microgel is successfully tuned by the amount of incorporated iPMA. 

Where 11 and II are, respectively, the osmotic pressure of the mobile ions inside the microgels and bulk solution. II ei is the elastic pressure of the polymeric network [73]. 

Methacrylic acid polymers are well known for their pH sensitivity [74]. Incorporation of co-monomers containing acidic [75] or basic [76] functionalities into poly(NIPAM) microgels yields particles with pH driven swelling. For example, Snowden etaL, reported the 

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Figure 9.5-8. Effect of co-monomer 1-hexene on the productivity. Pressure, 150 MPa temperature, 210°C Zr in feed, 0.2 - 1.1 mol ppm Al/Zr, 200 mol/mol toluene in feed, 10mol.%.

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