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Journals / Turkish Journal of Chemistry / 2007 / Cilt: 31 - Sayı: 3

Preparation and Properties of Triethoxyvinylsilane-Modified Styrene - Butyl Acrylate Emulsion Copolymers

Hamid Javaherian NAGHASH
Akram KARIMZADEH
Ahmad Reza MOMENI
Ahmad Reza MASSAH
Hamid ALIAN
Pages
257–269
Publication Date
2007-03-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The monomer conversion and monomer conversion versus time histories indicate that by increasing the TEVS concentration the polymerization rate decreases.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The copolymers of triethoxyvinylsilane (TEVS) with styrene (St), butyl acrylate (BA), and methacrylic acid (MAA) were prepared by emulsion polymerization.
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Key Findings & Data:The copolymerization was carried out by using auxiliary agents at 90 °C in the presence of potassium peroxodisulfate (KPS) as the initiator.
💡
Conclusion & Impact:The monomer conversion and monomer conversion versus time histories indicate that by increasing the TEVS concentration the polymerization rate decreases.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Triethoxyvinylsilane · emulsion copolymerization · poly (styrene-co- butylacrylate)

Abstract

The copolymers of triethoxyvinylsilane (TEVS) with styrene (St), butyl acrylate (BA), and methacrylic acid (MAA) were prepared by emulsion polymerization. The copolymerization was carried out by using auxiliary agents at 90 °C in the presence of potassium peroxodisulfate (KPS) as the initiator. Nonylphenol ethylene oxide -- 40 units (NP-40) and sodium lauryl sulfoacetate (SLSA) were used as nonionic and anionic emulsifiers, respectively. The resulting copolymers were characterized by Fourier transform infrared spectroscopy (FTIR). Thermal properties of the copolymers were studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphology of copolymers was also investigated by optical microscopy (OM) and then the effects of temperature, agitation speed, initiator and silicone concentrations on the properties of the silicone-containing St/BA/MAA emulsion copolymers were discussed. The obtained copolymers have high solid content (50%) and can be used in emulsion paints as a binder. The monomer conversion and monomer conversion versus time histories indicate that by increasing the TEVS concentration the polymerization rate decreases.

Özet

The copolymers of triethoxyvinylsilane (TEVS) with styrene (St), butyl acrylate (BA), and methacrylic acid (MAA) were prepared by emulsion polymerization. The copolymerization was carried out by using auxiliary agents at 90 °C in the presence of potassium peroxodisulfate (KPS) as the initiator. Nonylphenol ethylene oxide -- 40 units (NP-40) and sodium lauryl sulfoacetate (SLSA) were used as nonionic and anionic emulsifiers, respectively. The resulting copolymers were characterized by Fourier transform infrared spectroscopy (FTIR). Thermal properties of the copolymers were studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphology of copolymers was also investigated by optical microscopy (OM) and then the effects of temperature, agitation speed, initiator and silicone concentrations on the properties of the silicone-containing St/BA/MAA emulsion copolymers were discussed. The obtained copolymers have high solid content (50%) and can be used in emulsion paints as a binder. The monomer conversion and monomer conversion versus time histories indicate that by increasing the TEVS concentration the polymerization rate decreases.

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Cite This Article

NAGHASH, H. J., KARIMZADEH, A., MOMENI, A. R., MASSAH, A. R., ALIAN, H. (2007). Preparation and Properties of Triethoxyvinylsilane-Modified Styrene - Butyl Acrylate Emulsion Copolymers. Turkish Journal of Chemistry, Cilt: 31 - Sayı: 3, 257–269. https://ajindex.com/articles/185004

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