Multiarm Star Polymers with POSS at the Periphery

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Atıf İçin Kopyala

Gungor E., Bilir C., Hızal G., Tunca Ü.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.48, sa.21, ss.4835-4841, 2010 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 48 Sayı: 21
• Basım Tarihi: 2010
• Doi Numarası: 10.1002/pola.24275
• Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.4835-4841
• Anahtar Kelimeler: azide-alkyne click reaction, hydrodynamic radius, intrinsic viscosity, living radical polymerization, multiarm star polymer, polystyrene, poly(tert-butyl acrylate), POSS, star polymers, triple detection GPC, LIVING RADICAL POLYMERIZATION, DOUBLE CLICK REACTIONS, TERMINATOR MULTIFUNCTIONAL INITIATOR, POLYHEDRAL OLIGOMERIC SILSESQUIOXANE, BLOCK-COPOLYMERS, DENDRITIC MACROMOLECULES, CONVENTIONAL MONOMERS, DIVERGENT SYNTHESIS, ITERATIVE STRATEGY, HYBRID POLYMERS
• İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Azide end-functionalized polyhedral oligomeric silsesquioxane (POSS-N-3) was incorporated into the periphery of well-defined alkyne-polystyrene(50)-poly(divinyl benzene) (alkyne-PS50-polyDVB) and alkyne-poly(tert-butyl acrylate)(43)-poly(divinyl benzene) (alkyne-PtBA(43)-polyDVB) multiarm star polymers via highly efficient azide-alkyne click reaction, resulting in POSS-PS50-polyDVB and POSS-PtBA(43)-polyDVB multiarm star block copolymers respectively, in the solution of tetrahydrofuran/N,N-dimethyl formamide, CuBr/N,N,N',N '',N ''-pentamethyldiethylenetriamine (PMDETA) at room temperature for 24 h. Linear precursors and star polymers obtained in this study were characterized H-1 NMR, gel permeation chromatography (GPC), and triple detection GPC (TD-GPC). Absolute molecular weight, hydrodynamic radius, and intrinsic viscosity ([eta]) values for all star polymers were determined by TD-GPC. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 4835-4841, 2010