CrosslinkingMechanical strengthThis study was carried out to improve the mechanical strength of polyvinyl alcohol (PVA)/alginate carriers for long-term stability of deammonification process. The post-treatment of PVA/alginate carriers with glutaraldehyde (Gl) under mild conditions was proposed for ...
[9]Dong Z F,Qun W,Du Y M.Alginate/gelatin blend films and their properties for drug controlled release[J].Journal ofMembrane Science,2006,280:37-44. [10]Bigi A,Cojazzi G,Panzavolta S,et al.Stabilization of gelatin films by crosslinking with genipin[J].Biomaterials,2002,23:4827-4832....
The studies above show the significant effect of the PVA hydrogel with different salts on producing high thermoelectric power. However, limited research is focused on the thermoelectric performance of a salt-free PVA hydrogel. PVA hydrogels can be prepared using chemical crosslinking to improve the ...
The reactions were conducted under normal atmospheric conditions, using ammonium persulfate (APS) as an initiator and methylene bisacrylamide (MBA) as a crosslinking agent. The effect of reaction parameters such as MBA, AAm, and APS concentration as well as Na-Alg/PVA weight ratio on the water...
Hence, the main goal of our present investigation is to exploit PVA as a pH-responsive drug delivery system through its crosslinking with CA. CA not only can crosslink and stabilize PVA via the esterification reaction, but also it can simultaneously endow both pH-responsive property and antibact...
Functional stability of temperature-compensated nitrification in domestic wastewater treatment obtained with PVA-SbQ/alginate gel entrapment Gel beads (3 mm) of PVA-SbQ were cast by entrapment in Ca-alginate beads prior to photo-induced crosslinking of the synthetic polymer. Such beads have main......
PVA-boric acid chemical cross-linking. In this experiment, we used the mixed solution with a PVA concentration of 7% and sodium alginate concentration of 1%. The mixed solution was dropped into the standard boric acid solution containing 2% anhydrous calcium chloride cross-linking agent and cross-...
ions in hydrogel can be described according to the solution diffusion model.The single-factor test shows that the best production process conditions to prepare hydrogel are crosslinking time of 15 min,PVA concentration of 4 %~5 %,alginate concentration of 2.0 %,PLA concentration of 0.2 %~0.3 ...
Existing studies have shown that the cross-linking between PVA and starch became more precise because of the addition of ε-polylysine 19 or nano titania which can enhance thermal stability [41]. It has been observed that thermal stability increased through some pigments. Anthocyanins cause ...
This paper describes the preparation and characterization of flexible crosslinked chitosan (CH)/poly(vinyl alcohol) (PVA) films. These chitosan-based films are prepared using oxidized pectin as crosslinking agent, and PVA as plasticizer. The chemical structure of the obtained blend films were investig...