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Dergiler / Yenilikçi Mühendislik ve Doğa Bilimleri / 2026 / Volume: 3 Issue: 1

Effect of monomer partitioning on vinyl acetate-butyl acrylate emulsion copolymers

Özgür Ceylan(YALOVA ÜNİVERSİTESİ)0000-0003-1265-3730
Hüseyin Yıldırım(YALOVA ÜNİVERSİTESİ)0000-0001-9362-7408
Sayfa
—
Yayın Tarihi
2023-01-31
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

It was seen that the molecular weight distributions (PDI) of the synthesized copolymers showed a narrow distribution between 3-5.

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Amaç & Hipotez:Semi-continuous free radical emulsion polymerizations of vinyl acetate and butyl acrylate initiated by a water-soluble (potassium peroxydisulfate, KPS) initiator in the presence of a N-methylol acrylamide (NMA) at 70°C were investigated. 12 different monomer compositions (BuA ratio, from 0/100 to 100/0) were prepared and the effect of Vinyl acetate /Butyl acrylate (Vac/BuA) monomer ratio on viscosity, molecular weights (Mn, Mw, Mv), conversion, and molecular weight distribution were also investigated.
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Temel Bulgular & Veri:Viscosity and molecular weights were increased with BuA ratio in the synthesized copolymers.
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Sonuç & Katkı:It was seen that the molecular weight distributions (PDI) of the synthesized copolymers showed a narrow distribution between 3-5.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Emulsion · Vinyl acetate · Butyl acrylate

Abstract

Semi-continuous free radical emulsion polymerizations of vinyl acetate and butyl acrylate initiated by a water-soluble (potassium peroxydisulfate, KPS) initiator in the presence of a N-methylol acrylamide (NMA) at 70°C were investigated. 12 different monomer compositions (BuA ratio, from 0/100 to 100/0) were prepared and the effect of Vinyl acetate /Butyl acrylate (Vac/BuA) monomer ratio on viscosity, molecular weights (Mn, Mw, Mv), conversion, and molecular weight distribution were also investigated. It was found that as a protective colloid, N-methylol acrylamide worked perfectly for maintaining emulsion stability. Viscosity and molecular weights were increased with BuA ratio in the synthesized copolymers. High conversion values (above 90%) were reached. It was seen that the molecular weight distributions (PDI) of the synthesized copolymers showed a narrow distribution between 3-5.

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Bu Makaleye Atıf Yap

Ceylan, Ö., Yıldırım, H. (2023). Effect of monomer partitioning on vinyl acetate-butyl acrylate emulsion copolymers. Yenilikçi Mühendislik ve Doğa Bilimleri, Volume: 3 Issue: 1. https://doi.org/10.29228/JIENS.66549

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