How are polyacrylamide/polyanionic cellulose/Zr-Cp composite hydrogels prepared?

In this paper, a series of polyacrylamide/polyanionic cellulose/Zr–CP (PAM/PAC/Zr–CP) composite hydrogels were prepared via acrylamide polymerization in aqueous solutions of PAC and disodium terephthalate (Na 2 BDC), followed by posttreatment in 0.1 M ZrOCl 2 solution.

What is Pam/PAC-Fe(III) polyacrylamide/polyanionic cellulose composite physical hydrogel?

In this work, a series of Fe (III)-crosslinked polyacrylamide/polyanionic cellulose composite physical hydrogels [PAM/PAC-Fe (III)] were firstly prepared via polymerizing acrylamide in PAC solution free of chemical crosslinkers, and followed by posttreatment in 0.1 M iron chloride solution.

What is polyanionic cellulose (PAC)?

Moreover, a type of advanced CMC product with more uniform substitution is usually called polyanionic cellulose (PAC). In our previous studies, we have used both CNF and PAC (carboxyl contents of 1.56 and 3.87 mmol/g, respectively) to fabricate composited polyacrylamide (PAM) hydrogels treated by Fe (III) and Zr (IV) species, respectively.

How are Pam/PAC/Zr–Cp composite hydrogels based on strong ZR–carboxylate coordination fabricated?

In this presentation, a series of PAM/PAC/Zr–CP composite hydrogels based on strong Zr–carboxylate coordination are fabricated through a facile aqueous in situ growing method, accomplishing the goal of shaping Zr–CP and functionalizing hydrogels synchronously.

How Pac aqueous solution is used to polymerize a Pam/PAC composite gel?

As illustrated in Scheme 1, AM was polymerized through in situ radical polymerization in PAC aqueous solutions to get PAM/PAC composite gels; subsequently, the as-prepared gels were soaked in 0.1 M FeCl 3 aqueous solution for 12 h, followed by immersing in a large amount of deionized water for 24 h, achieving the equilibrium states of hydrogels.

How are Pam/PAC-Zr (IV) hydrogels prepared?

Similar to our previous preparation of PAM/PAC–Zr (IV) hydrogels, the ligand is premixed with reactant solutions of AM and PAC, and the precursor solutions are polymerized to obtain primary hydrogels, which are subsequently posttreated by 0.1 M ZrOCl 2 aqueous solution, generating composite hydrogels with improved mechanics and adsorption for dyes.