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Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2026 / Cilt: 8 Sayı: 3

Synthesis of PMMA-b-PEG-b- PMMA by controlled Polymerization Using Macro-RAFT Agents

Mehmet Bağlan(KAFKAS ÜNİVERSİTESİ)0000-0002-7089-7111
Ümit Yıldıko(IĞDIR ÜNİVERSİTESİ)0000-0001-8627-9038
İsmail Çakmak(KAFKAS ÜNİVERSİTESİ, FEN-EDEBİYAT FAKÜLTESİ)0000-0002-3191-7570
Ahmet Turan Tekeş(KAFKAS ÜNİVERSİTESİ)0000-0002-9942-7367
Pages
243–254
Publication Date
2018-09-30
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AI Summary & Key Takeaways

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

The structures of the synthesized macro RAFT agents and polymers were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopic methods.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this work controlled radical polymerization (CRP) of methyl methacrylate was carried out in the presence of the Poly(ethylene glycol)(PEG) xanthate reversible addition fragmentation (RAFT) chain transfer agent designated as (CTA1) and (CTA2).
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Key Findings & Data:Firstly, PEGs having different molecular weights (400 and 600 g/mol) were reacted KOH and CS2 and the terminated 4-chloro benzoyl chloride to obtain PEG-xathates.
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Conclusion & Impact:The structures of the synthesized macro RAFT agents and polymers were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopic methods.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Block Copolymer · Controlled Radical Polymerization · Polyethylene Glycol

Abstract

In this work controlled radical polymerization (CRP) of methyl methacrylate was carried out in the presence of the Poly(ethylene glycol)(PEG) xanthate reversible addition fragmentation (RAFT) chain transfer agent designated as (CTA1) and (CTA2). Firstly, PEGs having different molecular weights (400 and 600 g/mol) were reacted KOH and CS2 and the terminated 4-chloro benzoyl chloride to obtain PEG-xathates. RAFT agent possessing PEG chain was used in the RAFT polymerization of MMA to yield PMMA-b-PEG-b-PMMA tri-block copolymers which can be used in various potential applications. With the gravimetric follow of the reaction, the control mechanism works well and the molecular weight has grown linearly. The structures of the synthesized macro RAFT agents and polymers were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopic methods.

Özet

In this work controlled radical polymerization (CRP) of methyl methacrylate was carried out in the presence of the Poly(ethylene glycol)(PEG) xanthate reversible addition fragmentation (RAFT) chain transfer agent designated as (CTA1) and (CTA2). Firstly, PEGs having different molecular weights (400 and 600 g/mol) were reacted KOH and CS2 and the terminated 4-chloro benzoyl chloride to obtain PEG-xathates. RAFT agent possessing PEG chain was used in the RAFT polymerization of MMA to yield PMMA-b-PEG-b-PMMA tri-block copolymers which can be used in various potential applications. With the gravimetric follow of the reaction, the control mechanism works well and the molecular weight has grown linearly. The structures of the synthesized macro RAFT agents and polymers were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopic methods.

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Cite This Article

Bağlan, M., Yıldıko, Ü., Çakmak, İ., Tekeş, A. T. (2018). Synthesis of PMMA-b-PEG-b- PMMA by controlled Polymerization Using Macro-RAFT Agents. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 8 Sayı: 3, 243–254. https://doi.org/10.21597/jist.428201

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