H-shaped (ABCDE type) quintopolymer via click reaction [3 + 2] strategy

Eda Gungor; Hakan Durmaz; Gurkan Hizal; Umit Tunca

doi:10.1002/pola.22781

H-shaped (ABCDE type) quintopolymer via click reaction [3 + 2] strategy

Eda Gungor, Hakan Durmaz, Gurkan Hizal, Umit Tunca^*

^*Corresponding author for this work

Department of Chemistry

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

H-shaped quintopolymer containing different five blocks: poly(e-caprolactone) (PCL), polystyrene (PS), poly(ethylene glycol) (PEG), and poly(methyl methacrylate) (PMMA) as side chains and poly(tert-butyl acrylate) (PtBA) as a main chain was simply prepared from a click reaction between azide end-functionalized PCL-PS-PtBA 3-miktoarm star terpolymer and PEG-PMMA-block copolymer with alkyne at the junction point, using Cu(I)/N,N,N′,N″, N″-pentamethyldiethylenetriamine (PMDETA) as a catalyst in DMF at room temperature for 20 h. The H-shaped quintopolymer was obtained with a number-average molecular weight (M_n) around 32,000 and low polydispersity index (M_w/M_n) 1.20 as determined by GPC analysis in THF using PS standards. The click reaction efficiency was calculated to have 60% from ¹H NMR spectroscopy.

Original language	English
Pages (from-to)	4459-4468
Number of pages	10
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	46
Issue number	13
DOIs	https://doi.org/10.1002/pola.22781
Publication status	Published - 1 Jul 2008

Keywords

Atom transfer radical polymerization (ATRP)
H-shaped polymer
Nitroxide mediated radical polymerization
Nonlinear polymer
Poly(ε-caprolactone)
Poly(-ethylene glycol)
Poly(methyl methacrylate)
Poly(tert-butyl acrylate)
Polystyrene

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title = "H-shaped (ABCDE type) quintopolymer via click reaction [3 + 2] strategy",

abstract = "H-shaped quintopolymer containing different five blocks: poly(e-caprolactone) (PCL), polystyrene (PS), poly(ethylene glycol) (PEG), and poly(methyl methacrylate) (PMMA) as side chains and poly(tert-butyl acrylate) (PtBA) as a main chain was simply prepared from a click reaction between azide end-functionalized PCL-PS-PtBA 3-miktoarm star terpolymer and PEG-PMMA-block copolymer with alkyne at the junction point, using Cu(I)/N,N,N′,N″, N″-pentamethyldiethylenetriamine (PMDETA) as a catalyst in DMF at room temperature for 20 h. The H-shaped quintopolymer was obtained with a number-average molecular weight (Mn) around 32,000 and low polydispersity index (Mw/Mn) 1.20 as determined by GPC analysis in THF using PS standards. The click reaction efficiency was calculated to have 60% from 1H NMR spectroscopy.",

keywords = "Atom transfer radical polymerization (ATRP), H-shaped polymer, Nitroxide mediated radical polymerization, Nonlinear polymer, Poly(ε-caprolactone), Poly(-ethylene glycol), Poly(methyl methacrylate), Poly(tert-butyl acrylate), Polystyrene",

author = "Eda Gungor and Hakan Durmaz and Gurkan Hizal and Umit Tunca",

year = "2008",

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AU - Hizal, Gurkan

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AB - H-shaped quintopolymer containing different five blocks: poly(e-caprolactone) (PCL), polystyrene (PS), poly(ethylene glycol) (PEG), and poly(methyl methacrylate) (PMMA) as side chains and poly(tert-butyl acrylate) (PtBA) as a main chain was simply prepared from a click reaction between azide end-functionalized PCL-PS-PtBA 3-miktoarm star terpolymer and PEG-PMMA-block copolymer with alkyne at the junction point, using Cu(I)/N,N,N′,N″, N″-pentamethyldiethylenetriamine (PMDETA) as a catalyst in DMF at room temperature for 20 h. The H-shaped quintopolymer was obtained with a number-average molecular weight (Mn) around 32,000 and low polydispersity index (Mw/Mn) 1.20 as determined by GPC analysis in THF using PS standards. The click reaction efficiency was calculated to have 60% from 1H NMR spectroscopy.

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KW - Poly(ε-caprolactone)

KW - Poly(-ethylene glycol)

KW - Poly(methyl methacrylate)

KW - Poly(tert-butyl acrylate)

KW - Polystyrene

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ER -

H-shaped (ABCDE type) quintopolymer via click reaction [3 + 2] strategy

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Keywords

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