Studies towards synthesis of urea containing helical polymers

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Edebiyat Fakültesi, Kimya Bölümü, Türkiye

Tezin Onay Tarihi: 2016

Öğrenci: GİZEM ÇALIŞGAN

Eş Danışman: ÖZDEMİR DOĞAN, AKIN AKDAĞ

Özet:

This thesis deals with design and synthesis of chiral polyurea type polymers. These polymers were analyzed with molecular mechanics that they could take a helical form. The polymers are polyurea type polymers and ureas are synthesized by treating isocyanates with amines. Starting from tartaric acid, ((4S,5S)-2,2-dimethyl-1,3- dioxolane-4,5diyl)dimethaneamine was synthesized. The other diamine was naturally occuring L-lysine. These diamine functionalized compounds were treated with pphenylene diisocyanate synthesized from p-phenylene diamine and triphosgene and polymerized with diamines. Similarly, (S)-methyl 2,6-diisocyanatohexanoate was synthesized by reacting with triphosgene and L-lysine methyl ester and polymerized with L-lysine. The results toward synthesis of these 'helical' polymers were discussed.