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- What is a nonionic polyacrylamide?
- Despite being described as nonionic synthetic polyacrylamides obtained as a result of polymerization or copolymerization of acrylamides, often contain in their macromolecules about 1–3% of anionic groups . These groups are formed as a result of monomer amide groups hydrolysis.
- What is anionic polyacrylamide?
- Anionic polyacrylamide is polymer with a large number of negatively charged moieties in the long chains of the PAM macromolecules. It can be obtained by partial hydrolysis of polyacrylamide neutral amide groups, which is shown in (3). This process occurs under moderate temperature by adding sodium hydroxide to the PAM solution [4, 6].
- Why is polyacrylamide a water soluble polymer?
- POLYACRYLAMIDE CHEMISTRY General properties Polyacrylamide is a water-soluble polymer which undergoes reactions typical of the amide group (Morris and Penzenstadler, 1978). Its importance lies in the solution properties, rheology, and ability to hydrogen bond to various surfaces.
- Can nonionic polyacrylamide be used as a gel fracturing fluid?
- Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization.
