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Poli - [(ε-kaprolakton-b-epiklorohidrin-b-ε-kaprolakton)] - g- (polistiren-) [(PCL-b-ECH-b-PCL)] - g-PS Blok-aşı Kopolimerleri Katyonik, Halka Açıklma Polimerizasyonu (ROP) ve Atom Transfer Radikal Polimerizasyon (ATRP) Tekniklerinin Kombinasyonu ile Sentezi

Synthesis of poly[ε-caprolacton-b-epichlorohydryin-b-ε-caprolactone]- g-poly(styrene) Block-Graft Copolymers via Cationic Ring Opening and Atom Transfer Radical Polymerization Transformations

ÜMİT Yıldıko
İsmail Çakmak
Temel Öztürk
Abdulkadir Yörük
Sayfa
161–169
Yayın Tarihi
2017-09-30
DOI
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Polimerler, 1 H-NMR, GPC ve DSC teknikleri ile karakterize edildi.

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Amaç & Hipotez:Poli - [(ε-kaprolakton-b-epiklorohidrin-b-ε-kaprolakton)] - g- (polistiren -) [(PCL-b-ECH-b-PCL)] - g-PS blok-aşı kopolimerleri katyonik, halka açıklama polimerizasyonu (ROP) ve atom transfer radikal polimerizasyon (ATRP) tekniklerinin kombinasyonu ile sentezlenmiştir.
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Temel Bulgular & Veri:Sentezlenen, Hidroksil fonksiyonel gruplu poli (epiklorohidrin) (PECH), ε-kaprolaktonun (ε-CL) 110 ° C’de halkalı açılma polimerizasyonunun (ROP) başlatıcısı olarak poli (ε-kaprolakton-b-epiklorohidrin- B-ε-kaprolakton) (PCL-PECH-PCL) blok kopolimerinin eldesinde kullanıldı.
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Sonuç & Katkı:Polimerler, 1 H-NMR, GPC ve DSC teknikleri ile karakterize edildi.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:ATRP · ROP · blok kopolimer

Özet

Poli - [(ε-kaprolakton-b-epiklorohidrin-b-ε-kaprolakton)] - g- (polistiren -) [(PCL-b-ECH-b-PCL)] - g-PS blok-aşı kopolimerleri katyonik, halka açıklama polimerizasyonu (ROP) ve atom transfer radikal polimerizasyon (ATRP) tekniklerinin kombinasyonu ile sentezlenmiştir. Bu amaçla, epiklorohidrin (ECH) polimerize etmek için katyonik halka açma tekniği kullanılmıştır. Sentezlenen, Hidroksil fonksiyonel gruplu poli (epiklorohidrin) (PECH), ε-kaprolaktonun (ε-CL) 110 ° C’de halkalı açılma polimerizasyonunun (ROP) başlatıcısı olarak poli (ε-kaprolakton-b-epiklorohidrin- B-ε-kaprolakton) (PCL-PECH-PCL) blok kopolimerinin eldesinde kullanıldı. Son olarak, başlatıcı olarak PCL-PECH-PCL’nin PECH bloğunun klorometil gruplarını kullanarak gerçekleştirilen stirenin atom transfer radikal polimerizasyonu (ATRP), [PCL-b-PECH-b-CL] -g-PS-graft kopolimeri oluşumuyla sonuçlanmıştır. Elde edilen sonuçlar, graft kopolimerlerinin moleküler ağırlıklarının stiren dönüşümüyle arttığını gösterdi. Polimerler, 1 H-NMR, GPC ve DSC teknikleri ile karakterize edildi.

Abstract

The poly[(ε-caprolacton-b-epichlorohydrin-b-ε-caprolactone)]-g-(polystyrene-) [(PCL-b-ECH-bPCL)]-g-PS block-graft copolymers were prepared via cationic, ring opening (ROP) and atom transfer radical polymerization (ATRP) transformations. With this goal in the frst, cationic ring-opening technique was used to polymerize the epichlorohydrin (ECH). The ring opening polymerisation (ROP) of ε-caprolactone (ε-CL) was carried out using poly (epichlorohydrin) (PECH) with hydroxyl functional groups acting as initiators at 110 ºC to yield poly(ε-caprolacton-b-epichlorohydrin-b-ε-caprolactone) (PCL-PECH-PCL) block copolymer. Finally, in the atom transfer radical polymerisation (ATRP) of the styrene, chloromethyl groups of the PECH segment of PCLPECH-PCL were used as the starting functional group. [PCL-b-PECH-b-CL] -g-PS graft copolymer block was obtained as a result of polymerization. The results of the analysis indicated that the molecular weights of the graft copolymers increased linearly with styrene polymerisation. Synthesized polymers were characterized by 1 H-NMR, GPC and DSC techniques.

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Bu Makaleye Atıf Yap

Yıldıko, Ü., Çakmak, İ., Öztürk, T., Yörük, A. (2017). Poli - [(ε-kaprolakton-b-epiklorohidrin-b-ε-kaprolakton)] - g- (polistiren-) [(PCL-b-ECH-b-PCL)] - g-PS Blok-aşı Kopolimerleri Katyonik, Halka Açıklma Polimerizasyonu (ROP) ve Atom Transfer Radikal Polimerizasyon (ATRP) Tekniklerinin Kombinasyonu ile Sentezi. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 7 Sayı: 3, 161–169. https://ajindex.com/articles/1272989

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