Synthesis of SiO2 Nano particles-Dimethyl Malonate Polymer
Subject Areas : Nano
banafsheh gorji
1
(department of chemistry,south tehran branch, islamic azad university, tehran, iran)
allahgholi ghasri allahgholi ghasri
2
(Islamic Azad University , shahre-ray branch, Tehran, Iran)
Keywords: Silica gel nanoparticles, Dimethyl malonate polymer, Hybrid composite, Anionic polymerization,
Abstract :
The goal of this research is synthesis of hybrid inorganic-organic microstructure to form a monolayer with anti-reflective properties. Dimethyl Malonate –Silica gel (DMM-SiO2) composite were synthesized by chemical method from dimethyl malonate (DMM) and silica gel particles with a diameter ~34 nm. The anionic polymerization was applied for the preparation of composite. DMM as monomer polymerizes upon reacting with an initiator (OHin H2O) and terminate by a terminator (H+ in HCl). We modify the anionic polymerization reaction by adding silica gel nanoparticles before initiating polymerization. Variables including SiO2 concentration, surfactant concentration, DMM/SiO2 ratio, and pH of solution have been investigated. The optimal synthesis conditions were obtained by Box-Behnken design (BBD). The results show that reaction should be carried out at ambient temperature and pH 4.5. Sodium dodecyl sulfate (SDS) as surfactant concentration, SiO2 concentration and DMM/SiO2 ratio should be 5 mmol, 2 w.t% and 4.2g/1g, respectively. DMM-SiO2 composite were characterized by Scanning Electron Microscopy (SEM), and Thermogravimetry Analysis (TGA).
1.Zoubi WA, Kamil MP, Fatimah S, Nisa N, Ko G. Recent advances in hybrid organic-inorganic materials with spatial architecture for state-of-the-art applications. Prog. Mater. Sci. 2020; 100663.
2.Kanehira K, Banzai T, Ogino C, Shimizu N, Kubota Y, Sonezaki S. Properties of TiO2-Polyacrylic Acid Dispersions with Potential for Molecular Recognition. Colloids Surf. B. Biointerfaces. 2008; 64: 10-12.
3.Fredj D. Alkarsifi R, Pourcin F, Liu X. New antimony-based organic-inorganic hybrid material as electron extraction layer for efficient and stable polymer solar cells. ACS Appl. Mater. Interfaces. 2019; 11, 47: 44820-44828.
4.Zoubi WA, Min J, Ko YG. Hybrid organic-inorganic coatings via electron transfer behavior. Sci. Rep. 2017; 1–15.
5.Ninomiya K, Ogino C, Oshima S, Sonoke S, Kuroda S. Ultrasonics Sonochemistry Targeted sonodynamic therapy using protein-modified TiO2 nanoparticles. Ultrason- Sonochemistry. 2012; 19, 3: 607–614.
6.Markel VA. Introduction to the Maxwell Garnett approximation: tutorial. J. Opt. Soc. Am. A. 2016; 33, 7: 1244.
7.Raut HK, Ganesh VA, Nair AS, Ramakrishna S. Anti-reflective coatings: A critical, in-depth review. Energy Environ. Sci. 2011; 4,10: 3779–3804.
8.Ramizy A, Al-Douri Y, Omar K, Hass Z. Optical insights into enhancement of solar cell performance based on porous silicon surfaces. Solar Cells - Silicon Wafer-Based Technologies. 2011; 179-200.
9.Schirone L, Sotgiu G, Califano F.P. Chemically etched porous silicon as an anti-reflection coating for high efficiency solar cells. Thin Solid Films. 1997; 1, 2:296-298.
10.Sun J, Wang X, Wu J, Jiang Ch. Biomimetic Moth-eye nanofabrication: Enhanced antireflection with superior self-cleaning Characteristic. Sci. Rep. 2018; 8, 1: 1–10.
11.Moghal J, Reid S, Hagerty L, Gardener M, WakeG. Development of single layer nanoparticle anti-reflection coating for polymer substrates. Thin solid films. 2013; 534: 541–545.
12.Zoubi WA, Min J, Ko YG. Hybrid organic-inorganic coatings via electron transfer behavior. Sci. Rep. 2017; 1–15.
13.Haga Y, Watanabe T, Yosomiya R. Encapsulating polymerization of titanium dioxide. Die Angew. Makromol. Chemie. 1991; 189, 1: 23–34.
14.Mballa MAM, Heuts JPA, Van Herk AM. Encapsulation of nonchemically modified montmorillonite clay platelets via emulsion polymerization. Colloid Polym. Sci. 2013; 291, 3: 501–513.
15.Huang M, Liu Y, Yang G, Klier J, Schiffman JD. Anionic Polymerization of Methylene Malonate for High-Performance Coatings, ACS Appl. Polym. Mater. 2019; 1, 4: 657–663.
16.Gorji B, Allahgholi Ghasri MR, Fazaeli R, Niksirat N. Synthesis and characterization of silica nanoparticles by a new sol-gel method. Journal of applied chemical research. 2012; 6, 3: 22-26.
17.Trevenen S, Beltramo PJ. Gradient stretching to produce variable aspect ratio colloidal ellipsoids. J. Colloid Interface Sci. 2021; 583: 385–393.