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Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2017 / Cilt: 7 - Sayı: 3

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

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

ÜMİT YILDIKO
İsmail ÇAKMAK
Temel ÖZTÜRK
Abdulkadir YÖRÜK
Pages
161–169
Publication Date
2017-09-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Synthesized polymers were characterized by 1 H-NMR,GPC and DSC techniques.

📌 3 Key Takeaways

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Objective & Hypothesis: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 radicalpolymerization (ATRP) transformations.
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Key Findings & Data:The ring opening polymerisation (ROP) of ε-caprolactone (ε-CL) wascarried out using poly (epichlorohydrin) (PECH) with hydroxyl functional groups acting as initiators at 110 ºC toyield poly(ε-caprolacton-b-epichlorohydrin-b-ε-caprolactone) (PCL-PECH-PCL) block copolymer.
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Conclusion & Impact:Synthesized polymers were characterized by 1 H-NMR,GPC and DSC techniques.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:ATRP · ROP · blok kopolimer

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 radicalpolymerization (ATRP) transformations. With this goal in the frst, cationic ring-opening technique was used topolymerize the epichlorohydrin (ECH). The ring opening polymerisation (ROP) of ε-caprolactone (ε-CL) wascarried out using poly (epichlorohydrin) (PECH) with hydroxyl functional groups acting as initiators at 110 ºC toyield poly(ε-caprolacton-b-epichlorohydrin-b-ε-caprolactone) (PCL-PECH-PCL) block copolymer. Finally, in theatom 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 wasobtained as a result of polymerization. The results of the analysis indicated that the molecular weights of the graftcopolymers increased linearly with styrene polymerisation. Synthesized polymers were characterized by 1 H-NMR,GPC and DSC techniques.

Özet

Poli - [(ε-kaprolakton-b-epiklorohidrin-b-ε-kaprolakton)] - g- (polistiren -) [(PCL-b-ECH-b-PCL)] - g-PSblok-aşı kopolimerleri katyonik, halka açıklama polimerizasyonu (ROP) ve atom transfer radikal polimerizasyon(ATRP) tekniklerinin kombinasyonu ile sentezlenmiştir. Bu amaçla, epiklorohidrin (ECH) polimerize etmekiçin 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 gerçekleştirilenstirenin atom transfer radikal polimerizasyonu (ATRP), [PCL-b-PECH-b-CL] -g-PS-graft kopolimeri oluşumuylasonuçlanmıştır. Elde edilen sonuçlar, graft kopolimerlerinin moleküler ağırlıklarının stiren dönüşümüyle arttığınıgösterdi. Polimerler, 1H-NMR, GPC ve DSC teknikleri ile karakterize edildi.

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Cite This Article

YILDIKO, Ü., ÇAKMAK, İ., ÖZTÜRK, T., YÖRÜK, A. (2017). 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. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 7 - Sayı: 3, 161–169. https://ajindex.com/articles/257078

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