Publication: Maleimide Ve Antrasen Sonlu Fonksiyonel Polimerlerin Diels-alder Reaksiyonuyla Blok Kopolimerler Sentezi
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Polimer Bilim ve Teknolojisi
Polymer Science and Technology
Polymer Science and Technology
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
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Blok kopolimerler maleimid ve antrasen uç fonksiyonlu PMMA, PS, PtBA ve Peg arasındaki Diels-Alder reaksiyonu vasıtasıyla toluene içerisinde 110 oC başarılı bir şekilde hazırlanmıştır. Bu amaç için, 2-Bromo-2-metil-propionik asit 2-(3,5-dioxo-10-oxa-4-azatrisiklo[5.2.1.0 2,6]dec-8-en-4-yl)-etil ester, 2, 9-antril metil 2-bromo-2-metil propanoate, 3, and 2-Bromo-propionik asit 2-(3,5-dioxo-10-oxa-4-azatrisiklo [5.2.1.02,6]dec-8-en-4-yl)-etil ester, 4, çeşitli sıcaklıklarda Cu(I) tuzu ve PMDETA varlığında ATRP da başlatıcı olarak kullanılmışlardır. Diğer taraftan, PEG ile maleimid veya antrasen uç fonksiyonlu polimerler monohidroksi PEG ve süksinik asit mono-antrasen-9-ylmetil ester, 1, veya 4-maleimido-benzoil klorür arasındaki esterifikasyon vasıtasıyla elde edilmiştir. Sonuçta elde edilen PMMA-b-PS, PEG-b-PS, PtBA-b-PS, ve PMMA-b-PEG blok kopolimerler 1H NMR, UV ve GPC kullanılarak karakterize edilmiştir.
A number of diblock copolymers were successfully prepared by Diels-Alder (DA) reaction between maleimide- and anthracene-end functionalized poly (methyl methacrylate) (PMMA), polystyrene (PS), poly(tert-butyl acrylate) (PtBA), and poly(ethylene glycol) (PEG) in toluene at 110 oC. For this purpose, 2-Bromo-2-methyl-propionic acid 2-(3,5-dioxo-10-oxa-4-azatricyclo[5.2.1.0 2,6]dec-8-en-4-yl)-ethyl ester, 2, 9-anthyrylmethyl 2-bromo-2-methyl propanoate, 3, and 2-Bromo-propionic acid 2-(3,5-dioxo-10-oxa-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl)-ethyl ester, 4, were used as initiators in atom transfer radical polymerization (ATRP) in the presence of Cu(I) salt and pentamethyldiethylenetriamine (PMDETA) at various temperature. On the other hand, PEG with maleimide or anthracene end functionality was achieved by esterification between monohydroxy PEG and succinic acid mono-athracen-9-ylmethyl ester, 1, or 4-maleimido-benzoyl chloride. Thus obtained PMMA-b-PS, PEG-b-PS, PtBA-b-PS, and PMMA-b-PEG block copolymers were characterized by 1H NMR, UV and GPC.
A number of diblock copolymers were successfully prepared by Diels-Alder (DA) reaction between maleimide- and anthracene-end functionalized poly (methyl methacrylate) (PMMA), polystyrene (PS), poly(tert-butyl acrylate) (PtBA), and poly(ethylene glycol) (PEG) in toluene at 110 oC. For this purpose, 2-Bromo-2-methyl-propionic acid 2-(3,5-dioxo-10-oxa-4-azatricyclo[5.2.1.0 2,6]dec-8-en-4-yl)-ethyl ester, 2, 9-anthyrylmethyl 2-bromo-2-methyl propanoate, 3, and 2-Bromo-propionic acid 2-(3,5-dioxo-10-oxa-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl)-ethyl ester, 4, were used as initiators in atom transfer radical polymerization (ATRP) in the presence of Cu(I) salt and pentamethyldiethylenetriamine (PMDETA) at various temperature. On the other hand, PEG with maleimide or anthracene end functionality was achieved by esterification between monohydroxy PEG and succinic acid mono-athracen-9-ylmethyl ester, 1, or 4-maleimido-benzoyl chloride. Thus obtained PMMA-b-PS, PEG-b-PS, PtBA-b-PS, and PMMA-b-PEG block copolymers were characterized by 1H NMR, UV and GPC.
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Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2006
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2006
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2006
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İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Keywords
Diels-Alder reaksiyonu, ikili blok kopolimer, maleimid, antrasen, atom transfer radikal polimerizasyon., Diels-Alder reaction, diblock copolymer, maleimide, anthracene, atom transfer radical polymerization.
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