Synthesis of non-amphiphilic block copolymer with S-trityl-cysteine and pyrene units by ATRP polymerization: characterization and fluorescence study

A new diblock copolymer, 1-methylpyrene isobutyrate–poly(methyl methacrylate–block-N-acryloyl-S-trityl-cysteine)-Br (Py–PMMA–b-ATCys-Br), was synthesized by atom transfer radical polymerization (ATRP) of N-acryloyl-S-trityl-L-cysteine monomer (ATCys) with 1-methylpyrene isobutyrate–poly(methyl metha...

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Bibliographic Details
Published in:Journal of polymer research 2017-07, Vol.24 (7), p.1, Article 103
Main Authors: Podasca, Viorica E., Buruiana, Tinca, Varganici, Cristian D., Buruiana, Emil C.
Format: Article
Language:English
Subjects:
Block copolymers
Carbon dioxide
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry
Chemistry and Materials Science
Copolymers
Copper
Cysteine
Fluorescence
Fourier analysis
Fourier transforms
Glass transition temperature
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared radiation
Infrared spectroscopy
Lead
Liquid chromatography
Mercury (metal)
Nanoparticles
NMR
Nuclear magnetic resonance
Original Paper
Penetration
Polymer Sciences
Polymerization
Quenching
Spectroscopic analysis
Spectrum analysis
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Summary:A new diblock copolymer, 1-methylpyrene isobutyrate–poly(methyl methacrylate–block-N-acryloyl-S-trityl-cysteine)-Br (Py–PMMA–b-ATCys-Br), was synthesized by atom transfer radical polymerization (ATRP) of N-acryloyl-S-trityl-L-cysteine monomer (ATCys) with 1-methylpyrene isobutyrate–poly(methyl methacrylate)–Br as a macroinitiator. The diblock copolymer and its precursor were characterized by 1 H and 13 C NMR spectroscopy, fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), gel permeation chromatography (GPC), and glass transition temperatures (Tg) measurements. Fluorescence properties of the diblock copolymer were investigated using various quenching (Cu 2+ , Hg 2+ , Fe 2+ , Fe 3+ , Co 2+ , Ni 2+ and Pb 2+ ) in dimethylformamide solutions, the more efficient quenchers being the Cu 2+ , Hg 2+ , Fe 2+ , and Fe 3+ ions. In addition, the effect of in situ photogenerated silver nanoparticles on the copolymer fluorescence was also investigated.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-017-1263-y