Synthesis and characterization of poly(methyl methacrylate-block-ethylene glycol-block-methyl methacrylate) block copolymers by reversible addition-fragmentation chain transfer polymerization

Synthesis of poly(methyl methacrylate-block-ethylene glycol-block-methyl methacrylate) triblock copolymers by reversible addition-fragmentation chain transfer (RAFT) by using a novel dual macro initiator (RAFT-agent) is reported. RAFT-agent is obtained from potassium salt of the ethyl xanthegonate and the terminally brominated poly(ethylene glycol) (Br-PEG-Br) which is synthesized by the reaction of poly(ethylene glycol) [PEG] with Mn= 3000 Dalton and 3-bromopropionyl chloride. The principal parameters such as monomer concentration, initiator concentration, and polymerization time that affect the polymerization reaction are evaluated. The characterization of the products is achieved using Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H-NMR), gel-permeation chromatography (GPC), thermogravimetric analysis (TGA), and fractional precipitation () techniques. Molecular weights of the polymers obtained from GPC agreed with the theoretical values. RAFT polymerization is used to control the polymerization of MMA over a broad range of molecular weights. Copyright © Taylor & Francis Group, LLC.

Dergi Adı Journal of Macromolecular Science, Part A: Pure and Applied Chemistry
Dergi Cilt Bilgisi 48
Dergi Sayısı 1
Sayfalar 65 - 72
Yayın Yılı 2011
Eser Adı
[dc.title]
Synthesis and characterization of poly(methyl methacrylate-block-ethylene glycol-block-methyl methacrylate) block copolymers by reversible addition-fragmentation chain transfer polymerization
Yazar
[dc.contributor.author]
Öztürk, Temel
Yazar
[dc.contributor.author]
Göktaş, Melahat
Yazar
[dc.contributor.author]
Hazer, Baki
Yayın Yılı
[dc.date.issued]
2011
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Synthesis of poly(methyl methacrylate-block-ethylene glycol-block-methyl methacrylate) triblock copolymers by reversible addition-fragmentation chain transfer (RAFT) by using a novel dual macro initiator (RAFT-agent) is reported. RAFT-agent is obtained from potassium salt of the ethyl xanthegonate and the terminally brominated poly(ethylene glycol) (Br-PEG-Br) which is synthesized by the reaction of poly(ethylene glycol) [PEG] with Mn= 3000 Dalton and 3-bromopropionyl chloride. The principal parameters such as monomer concentration, initiator concentration, and polymerization time that affect the polymerization reaction are evaluated. The characterization of the products is achieved using Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H-NMR), gel-permeation chromatography (GPC), thermogravimetric analysis (TGA), and fractional precipitation () techniques. Molecular weights of the polymers obtained from GPC agreed with the theoretical values. RAFT polymerization is used to control the polymerization of MMA over a broad range of molecular weights. Copyright © Taylor & Francis Group, LLC.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
fractional precipitation
Konu Başlıkları
[dc.subject]
macro initiator
Konu Başlıkları
[dc.subject]
poly (methyl methacrylate)
Konu Başlıkları
[dc.subject]
poly(ethylene glycol)
Konu Başlıkları
[dc.subject]
Reversible addition-fragmentation chain transfer
Konu Başlıkları
[dc.subject]
triblock copolymer
Künye
[dc.identifier.citation]
Öztürk, T., Göktaş, M. ve Hazer, B. (2010). Synthesis and characterization of poly(Methyl methacrylate-block-ethylene glycol-block-methyl methacrylate) block copolymers by reversible addition-fragmentation chain transfer polymerization. Journal of Macromolecular Science, Part A, 48(1), 65-70. doi:10.1080/10601325.2011.528310
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1060-1325
Sponsor YAYINCI
[dc.description.sponsorship]
2009FEF02 108T981 Firat University Scientific Research Projects Management Unit
Sponsor YAYINCI
[dc.description.sponsorship]
This work was supported by the Scientific Research Projects Commission (KAU-BAP) of Kafkas University (Grants#2009FEF02) and TUBITAK (Grants#108T981).
İlk Sayfa Sayısı
[dc.identifier.startpage]
65
Son Sayfa Sayısı
[dc.identifier.endpage]
72
Dergi Adı
[dc.relation.journal]
Journal of Macromolecular Science, Part A: Pure and Applied Chemistry
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
48
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1080/10601325.2011.528310
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7740
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
23
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
09 Şubat 2024 12:13
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Tıklayınız
polymerization glycol) obtained concentration initiator reaction weights poly(ethylene fractional precipitation analysis Synthesis thermogravimetric gel-permeation (1H-NMR) resonance magnetic nuclear proton (FTIR) spectroscopy infrared chromatography polymers techniques Francis Taylor Copyright molecular Molecular control values theoretical agreed achieved
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