Ters Atom Transfer Radikal Polimerizasyon Yöntemi ile Polietilen Glikol ve Polimetil Metakrilat İçeren Çok Dallı Ya Da Çapraz Bağlı Kopolimerlerin Sentezi ve Karakterizasyonu

Year 2023, Volume: 13 Issue: 4, 1874 - 1893, 15.12.2023

Nilgün Asan Temel Öztürk Baki Hazer

https://doi.org/10.31466/kfbd.1367281

Abstract

Bu çalışmada, ters atom transfer radikal polimerizasyonu (RATRP) metodu kullanılarak polietilen glikol (PEG) ve polimetil metakrilat (PMMA) bloklarını içeren çok dallı ya da çapraz bağlı kopolimerlerin sentezi gerçekleştirildi. Bunun için öncelikle, 4,4'-azobis(4-siyanopentanoik asit) ile fosfor pentaklorür reaksiyona sokularak 4,4'-azobis(4-siyanopentanoil klorür) (ACPC) elde edildi. Sentezlenen ACPC ile çeşitli molekül ağırlığına sahip PEG’ler (400 g.mol-1, 600 g.mol-1, 1000 g.mol-1, 1500 g.mol-1 ve 2000 g.mol-1) reaksiyona sokularak uç kısımlarında polietilen glikol içeren poliazoesterin (PAE) sentezi gerçekleştirildi. Elde edilen PAE ile metakriloil klorürün tepkimesinden metakriloil son uçlarına sahip polietilen glikol azoesterin (PAE-dimetakrioil) eldesi yapıldı. Ayrıca PAE ile 4-vinil benzil klorürün tepkimesinden 4-vinil benzil son uçlarına sahip polietilen glikol azoesterin (PAE-diVB) eldesi başarıldı. Son olarak PAE-dimetakrioil ve PAE-diVB kullanılarak metil metakrilatın RATRP ile çok dallı ya da çapraz bağlı kopolimerler sentezlendi. Sentezlenen ürünler FT-IR, 1H-NMR ve şişme değerleri (qv) teknikleri ile karakterilize edildi.

Keywords

Ters atom transfer radikal polimerizasyon, çok dallı ya da çapraz bağlı kopolimer, polietilen glikol, polimetil metakrilat

Ethical Statement

Çıkar Çatışması Beyanı: Yazarlar arasında herhangi bir çıkar çatışması bulunmamaktadır. Araştırma ve Yayın Etiği Beyanı: Yapılan çalışmada araştırma ve yayın etiğine uyulmuştur.

Supporting Institution

Giresun Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi

Project Number

FEN-BAP-C-250221-11

Thanks

Bu çalışma Giresun Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi tarafından desteklenmiştir (proje numarası: FEN-BAP-C-250221-11).

Synthesis and Characterization of The Hyper-Branched or Cross-Linked Copolymers Including Polyethylene Glycol and Polymethyl Methacrylate by Reverse Atom Transfer Radical Polymerization Method

Abstract

In this study, the synthesis of hyper-branched or cross-linked copolymers containing polyethylene glycol (PEG) and polymethyl methacrylate (PMMA) blocks was carried out using the reverse atom transfer radical polymerization (RATRP) method. For this, firstly, 4,4'-azobis (4-cyanopentanoic acid) was reacted with phosphorus pentachloride to obtain 4,4'-azobis (4-cyanopentanoyl chloride) (ACPC). By reacting PEGs of various molecular weights (400 g.mol-1, 600 g.mol-1, 1000 g.mol-1, 1500 g.mol-1 and 2000 g.mol-1) and synthesized ACPC, the synthesis of the polyazoester containing polyethylene glycol end groups (PAE) was carried out. By reacting obtained PAE and methacryloyl chloride, polyethylene glycol azoester possessing methacryloyl end groups (PAE- methacryloyl) was obtained. Additionally, it was achieved to obtain polyethylene glycol azoester with 4-vinyl benzyl end groups (PAE-diVB) from the reaction of 4-vinyl benzyl chloride with PAE. Finally, hyper-branched or cross-linked copolymers were synthesized by RATRP of methyl methacrylate using PAE- methacryloyl and PAE-diVB. The synthesized products were characterized by FT-IR, 1H-NMR, and swelling value (qv) techniques.

Keywords

Reverse atom transfer radical polymerization, hyper-branched or cross-linked copolymer, polyethylene glycol, polymethyl methacrylate

Project Number

FEN-BAP-C-250221-11

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