Synthesis and Characterization of Poly(β-Propiolactone) b-Poly(methyl methacrylate) Tri-arm Block Copolymer Using Atom Transfer Radical Polymerization

Ergül Meyvacı; Efkan Çatıker; Temel Öztürk

Makale detayları

Synthesis and Characterization of Poly(β-Propiolactone) b-Poly(methyl methacrylate) Tri-arm Block Copolymer Using Atom Transfer Radical Polymerization

Yazarlar:

Ergül Meyvacı | Efkan Çatıker | Temel Öztürk

Yayıncı:

Giresun University

Ana Başlıklar:

Kimya Mühendisliği (Diğer)

Dergi:

Karadeniz Fen Bilimleri Dergisi Vol.13 Issue 3, pp.882-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001298584

pISSN:

2564-7377

Anahtar kelimeler:

Özet:

 Terminally dibrominated polyβ-propiolactone was prepared through sequentially ring-opening polymerization of β-propiolactone and dibromination of the former product. Synthesis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer was achieved by atom transfer radical polymerization of methyl methacrylate onto the polyβ-propiolactone with bromide end groups. The characterization of the polymers was carried out using 1H-NMR, DSC, TGA, and GPC. GPC analysis of the final product resulted in an unimodal curve corresponding to the weight average molecular weight of 9353 g.mol-1. TGA analysis of the tri-arm block copolymer exhibited a two-step decomposition curve corresponding to the β-propiolactone and the methyl methacrylate blocks at 212 oC and 411 oC, respectively. DSC analysis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer showed two glass temperatures corresponding to the β-propiolactone and the methyl methacrylate blocks at -22.02 oC and 86.55 oC, respectively. The spectroscopic and thermal analyses proved that the tri-arm block copolymer was successfully synthesized through ring-opening polymerization and atom transfer radical polymerization, respectively.

 Terminally dibrominated polyβ-propiolactone was prepared through sequentially ring-opening polymerization of β-propiolactone and dibromination of the former product. Synthesis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer was achieved by atom transfer radical polymerization of methyl methacrylate onto the polyβ-propiolactone with bromide end groups. The characterization of the polymers was carried out using 1H-NMR, DSC, TGA, and GPC. GPC analysis of the final product resulted in an unimodal curve corresponding to the weight average molecular weight of 9353 g.mol-1. TGA analysis of the tri-arm block copolymer exhibited a two-step decomposition curve corresponding to the β-propiolactone and the methyl methacrylate blocks at 212 oC and 411 oC, respectively. DSC analysis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer showed two glass temperatures corresponding to the β-propiolactone and the methyl methacrylate blocks at -22.02 oC and 86.55 oC, respectively. The spectroscopic and thermal analyses proved that the tri-arm block copolymer was successfully synthesized through ring-opening polymerization and atom transfer radical polymerization, respectively.

 Terminally dibrominated polyβ-propiolactone was prepared through sequentially ring-opening polymerization of β-propiolactone and dibromination of the former product. Synthesis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer was achieved by atom transfer radical polymerization of methyl methacrylate onto the polyβ-propiolactone with bromide end groups. The characterization of the polymers was carried out using 1H-NMR, DSC, TGA, and GPC. GPC analysis of the final product resulted in an unimodal curve corresponding to the weight average molecular weight of 9353 g.mol-1. TGA analysis of the tri-arm block copolymer exhibited a two-step decomposition curve corresponding to the β-propiolactone and the methyl methacrylate blocks at 212 oC and 411 oC, respectively. DSC analysis of polyβ-propiolactone-b polymethyl methacrylate tri-arm block copolymer showed two glass temperatures corresponding to the β-propiolactone and the methyl methacrylate blocks at -22.02 oC and 86.55 oC, respectively. The spectroscopic and thermal analyses proved that the tri-arm block copolymer was successfully synthesized through ring-opening polymerization and atom transfer radical polymerization, respectively.

 Son uçları dibromlanmış poliβ-propiyolakton, sırasıyla β-propiyolaktonun halka açma polimerizasyonu ve poliβ-propiolaktonun dibrominasyonu yoluyla hazırlandı. Poliβ-propiyolakton-b-polimetil metakrilat üç kollu blok kopolimer sentezi, metil metakrilatın bromür uç gruplarına sahip poliβ-propiyolakton üzerine atom transferiyle radikal polimerizasyonuyla elde edildi. Polimerlerin karakterizasyonu, 1H-NMR, DSC, TGA ve GPC kullanılarak gerçekleştirildi. Son ürünün GPC analizi, 9353 g.mol-1 ortalama molekül ağırlığına karşılık gelen bir tek dağılımlı eğri gösterdi. Üç kollu blok kopolimerin TGA analizi, 212 oC ve 411 oCde sırasıyla β-propiyolakton ve metil metakrilat bloklarına karşılık gelen iki basamaklı bozunma eğrisi sergiledi. Poliβ-propiolakton-b-polimetil metakrilat üç kollu blok kopolimerinin DSC analizi, -22.02 oC ve 86.55 oCde sırasıyla β-propiyolakton ve metil metakrilat bloklarına karşılık gelen iki camsı geçiş sıcaklığı gösterdi. Spektroskopik ve termal analizler, üç kollu blok kopolimerin sırasıyla halka açma polimerizasyonu ve atom transfer radikal polimerizasyonu yoluyla başarılı bir şekilde sentezlendiğini kanıtladı.

Makale detayları

Synthesis and Characterization of Poly(β-Propiolactone) b-Poly(methyl methacrylate) Tri-arm Block Copolymer Using Atom Transfer Radical Polymerization

Yazarlar:

Ergül Meyvacı | Efkan Çatıker | Temel Öztürk

Yayıncı:

Giresun University

Ana Başlıklar:

Kimya Mühendisliği (Diğer)

Dergi:

Karadeniz Fen Bilimleri Dergisi Vol.13 Issue 3, pp.882-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001298584

pISSN:

2564-7377

Atom Transfer Radical Polymerization

Macro Initiator

Poly(β-Propiolactone)

Ring-Opening Polymerization

Tri-Arm Block Copolymer.Atom Transfer Radikal Polimerizasyonu

Makro Başlatıcı

Poli(β-propiyolakton)

Halka Açılması Polimerizasyonu

Üç Kollu Blok Kopolimer.

Sayı

Makale detayları

Yazarlar: Ergül Meyvacı | Efkan Çatıker | Temel Öztürk

Yayıncı: Giresun University

Ana Başlıklar: Kimya Mühendisliği (Diğer)

Dergi: Karadeniz Fen Bilimleri Dergisi Vol.13 Issue 3, pp.882-893

Belge Tipi: Makale

Yayın Tarihi: 9/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001298584

pISSN: 2564-7377

Sayı

Yazarlar:

Ergül Meyvacı | Efkan Çatıker | Temel Öztürk

Yayıncı:

Giresun University

Ana Başlıklar:

Kimya Mühendisliği (Diğer)

Dergi:

Karadeniz Fen Bilimleri Dergisi Vol.13 Issue 3, pp.882-893

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001298584

pISSN:

2564-7377