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oai:ojs.www.eurjchem.com:article/1480 2016-12-31T08:51:22Z eurjchem:ART driver

Synthesis, characterization and thermal properties of the nano four arms poly(pentaerythritollactide-b-N,N-dimethylaminoethyl methacrylate) derivatives Al-Mayyahi, Baqer Al-Lami, Hadi Haddad, Athir ATRP L-Lactide Lactide fibers Nanostructure Nano four arms N N-Dimethylaminoethyl methacrylate The nano four arms poly(lactide-b-N,N-dimethylaminoethylmethacrylate) were prepared by pentaerythritol-lactide atom transfer radical polymerization initiators having different repeating units (10, 25, 50 and 100) of L-lactide with the same amount of N,N-dimethylaminoethyl methacrylate by atom transfer radical polymerization reaction. The copolymers were characterized FT-IR, 1H NMR, 13C NMR and Gel permeation chromatography. These characterization methods confirmed the structures of prepared copolymers. Scanning electron microscopy, on the other hand, revealed that the presence of a nanostructure in the prepared copolymers attributed to the lactide fibers. Then, the thermal study was carried out on the copolymers the results have proven to increase the thermal stability of the copolymers with the increasing chain length of the lactide. Atlanta Publishing House LLC 2016-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/1480 10.5155/eurjchem.7.4.405-409.1480 European Journal of Chemistry; Vol. 7 No. 4 (2016): December 2016; 405-409 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/1480/pdf_1480