UV-induced synthesis of chitosan-g-polyacrylamide
UV-induced synthesis of chitosan-g-polyacrylamide semi-IPN superabsorbent hydrogels
ORIGINAL PAPER UV-induced synthesis of chitosan-g-polyacrylamide semi-IPN superabsorbent hydrogels Samaneh Saber-Samandari • Mustafa Gazi • Elvan Yilmaz Received: 21 June 2011/Revised: 21
UV-induced synthesis of chitosan-g-polyacrylamide
UV-induced synthesis of chitosan-g-polyacrylamide semi-IPN superabsorbent hydrogels
UV-induced synthesis of chitosan-g-polyacrylamide semi-IPN superabsorbent hydrogels Article (PDF Available) in Polymer Bulletin 68(6):1623-169 · April 2012 with 623 Reads How we measure 'reads'
Ultraviolet-assisted synthesis of polyacrylamide-grafted
In the present work, a new flocculant, polyacrylamide-grafted chitosan nanoparticles (NCS-g-PAM), was synthesized by the copolymerization of acrylamide (AM) and chitosan nanoparticle (NCS) under ultraviolet irradiation using 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone as photo-initiator.The NCS was prepared by the ionic gelation between chitosan and sodium tripolyphosphate.
The synthesis of the grafted polymer was achieved by K 2 S 2 O 8 ‐induced free‐radical polymerization. Microspheres of polyacrylamide‐ g ‐chitosan crosslinked with glutaraldehyde were prepared to encapsulate nifedipine (NFD), a calcium channel blocker and an antihypertensive drug.
Facile preparation of polyacrylamide/chitosan/Fe3O4
S. Saber-Samandari, M. Gazi, E. YilmazUV-induced synthesis of chitosan-g-polyacrylamide semi-IPN superabsorbent hydrogels Polymer Bulletin, 68 (2012), pp. 1623-1639
Silver ions are reduced in aqueous solutions that contain sodium polyacrylate or partly carboxylated polyacrylamide or glutaric acid. The reducing agent is the hydrated electron (generated γ-radiolytically) or hydrogen. Complexes of small silver clusters with the polyelectrolyte are formed in the early stages of reduction, the color of the solutions varying from rose to green or blue
Functionalized Graphene Oxide with Chitosan for Protein
Functionalized Graphene Oxide with Chitosan for Protein Nanocarriers to Protect against Enzymatic Cleavage and Retain Collagenase Activity. Sci. Rep. 7 , 42258; doi: 10.1038/srep42258 (2017).
Chitosan-derived N-doped carbon materials are attractive candidates for the preparation of catalysts with a wide range of applications. Chitosan is a nitrogen rich (∼7 wt %) renewable biomass resource derived from seafood waste. Nitrogen-containing functional groups (amine and acetamide) of chitosan make it a suitable precursor for the synthesis of N-doped carbon materials. This perspective
Development and Characterization of Photoinduced
3.2. FTIR Spectroscopy. Chemical structures and chain conformations are characterized by ATR-FTIR spectroscopy. Figure 3(a) shows spectra in the characteristic region of O-H and N-H stretching and C=O overtone modes. Sharp bands, located at 3700–3450 cm −1, are associated with overtone combination modes.Difference spectra are also shown to provide clearer spectral changes.
AbstractAntimicrobial packaging is one of the most promising active packaging systems. Antimicrobial packaging is the packaging system that is able to kill or inhibit spoilage and pathogenic microorganisms that are contaminating foods. A tremendous effort has been made over the last decade to develop and test films with antimicrobial properties to improve food safety and shelf life.
- What is poly Aluminium chloride?
- This article delves into the chemical properties, uses, and safety considerations of poly aluminium chloride, while also examining its pivotal role in the water treatment industry. Poly aluminium chloride, commonly abbreviated as PAC, is a complex chemical compound used primarily as a coagulant in water purification.
- How does poly aluminum chloride affect sludge production?
- PAC benefited the aggregates of sludge flocs. PAC caused more EPS remained in sludge cells. Solubilization, hydrolysis, acidiogenesis, and methanogenesis were inhibited by PAC. Alb and Alc were the contributors to the decreased SCFA production. Poly aluminum chloride (PAC) is accumulated in waste activated sludge at high levels.
- What is poly Aluminium chloride (PAC)?
- In the vast field of water treatment, the role of chemicals in ensuring the purity and safety of water cannot be overstated. Among these, poly aluminium chloride (PAC) has emerged as a cornerstone in both potable water and wastewater treatment processes.
- Why is poly Aluminium chloride used in water treatment?
- The primary use of poly aluminium chloride in the water treatment process is to remove impurities and clarify water. This is achieved through a process known as coagulation, where PAC helps to bind particles into larger aggregates that can be easily removed.
