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.
Block Copolymer Controlled Radical Polymerization Polyethylene Glycol RAFT
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.
Controlled Radical Polymerization Polyethylene Glycol RAFT Block Copolymer RAFT
Birincil Dil | İngilizce |
---|---|
Konular | Kimya Mühendisliği |
Bölüm | Kimya / Chemistry |
Yazarlar | |
Yayımlanma Tarihi | 30 Eylül 2018 |
Gönderilme Tarihi | 29 Mayıs 2018 |
Kabul Tarihi | 6 Temmuz 2018 |
Yayımlandığı Sayı | Yıl 2018 Cilt: 8 Sayı: 3 |