What is a polyacrylamide hydrogel?

2.1. Polyacrylamide Polyacrylamide (PAAm, Figure 1 a) hydrogels are networks of hydrophilic polymer chains that can absorb a significant amount of water, swelling to many times their original volume, and this swelling behavior is highly sensitive to environmental conditions.

Does a polyacrylamide hydrogel map network imperfection to mechanical properties?

For a polyacrylamide hydrogel, we have shown that experimental measurements map network imperfection to mechanical properties.

Does a polyacrylamide hydrogel have elasticity?

Mullins effect It is often assumed that a polyacrylamide hydrogel has near-perfect elasticity. This ideal picture is inconsistent with a real network with imperfection. As the hydrogel is stretched, some polymer chains break before others. The intact chains stabilize the damaged network, so that broken chains distribute throughout the network.

Are hydrophobically associated hydrogels synthesized by aqueous polymerization of acrylamide?

In this study, we synthesized a series of hydrophobically associated hydrogels by the aqueous polymerization of acrylamide, acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid, and a novel amphiphilic hydrophobic monomer (RCS-10).

How is polyacrylamide based hydrogel prepared by scanning electron microscopy?

ies of Polyacrylamide based hydrogel by Scanning Electron Microscopy (S.E.M).Tuncer et al., (2007) prepared macroporous poly (acrylamide) [poly (AAm)] hydrogels by using poly (ethylene glycol) (PEG) with three different molecular weight as

Why is polyacrylamide hydrogel cut insensitive?

It is the network imperfection that makes the polyacrylamide hydrogel cut insensitive, the threshold for crack growth under cyclic load much below the toughness, and the threshold for crack growth under cyclic load distinct from that under static load.