Preparation of Sodium Alginate Porous Materials Using Colloidal Crystals as Templates

Abstract

Monodisperse P(St-MMA) colloids with diameters of 200 nm was synthesized successfully using emulsion polymerization firstly and then manufacture corresponding colloidal crystal which is used as template. Using fiber optic spectrometer to research the colloidal crystals before and after infiltrating sodium alginate and the reflection spectra shows the change of band gaps with Bragg law. The porous materials were studied using SEM.

Tailoring the Adsorption and Antibacterial Bifunctions of Newly Constructed Porous Alginate–Chitosan–Graphene Oxide Nanosheets Gel Beads

“…[10,11] Additionally, calcium phosphate, [12] calcium carbonate, [13,14] NaHCO 3 , colloidal crystals, and others are chosen as templates. [15,16] After the gel is formed, the templates are eliminated to create a porous structure by adding HCl or tetrahydrofuran. When it comes to these, NaHCO 3 is frequently utilized as a pore-forming agent since it does not introduce Ca 2þ , which might make the sol more viscous and interfere with the creation of spherical gel during the dropping process.…”