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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.
| Yazar |
Öztürk, Temel Göktaş, Melahat Hazer, Baki |
| Yayın Türü | Article |
| Tek Biçim Adres | https://hdl.handle.net/20.500.12628/7740 |
| Konu Başlıkları |
fractional precipitation
macro initiator poly (methyl methacrylate) poly(ethylene glycol) Reversible addition-fragmentation chain transfer triblock copolymer |
| Koleksiyonlar |
Fakülteler Fen Edebiyat Fakültesi Kimya Bölümü Makale Koleksiyonu (Kimya Bölümü) Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD Scopus İndeksli Yayınlar Koleksiyonu Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD WoS İndeksli Yayınlar Koleksiyonu |
| 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 |