New TEMPO containing polymers for all polymeric oxidation procedure

2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) is a versatile compound which is used mainly in organic oxidation reactions and organic battery applications. Incorporating TEMPO into a polymer could provide many applications into its repertoire. In this study, new polymeric TEMPO derivatives are synthesized and characterized to be used as catalysts in the presence of another polymer which constitutes N-halamine functionality. These polymeric mixtures were superior since the mixture could easily be separated from the reaction medium by simple filtration and reused in some other oxidation reactions numerous times. In turn, an all polymeric oxidation method was developed for oxidation of primary alcohols.


New strategy for the synthesis of chiral N-substituted-3,4-dialkoxypyrrole from 2,5-dihydro-2,5-dimethoxyfuran
Kapaklı, Fadile; Tanyeli, Cihangir; Department of Chemistry (2006)
Pyrroles are very valuable class of substances which have wide usage area in organic synthesis. In this study, chiral 3,4-dialkoxy-N-substituted pyrrole derivatives were synthesized. These compounds are widely used as building blocks for the synthesis of natural compounds that have focused on heterocyclic rings in their structures. In addition, chiral pyrrole derivatives can be used as monomers for the synthesis of chiral conducting polymers which have received great interest due to their potential applicat...
Fabrication of a Novel Polymeric Scaffold for Amperometric Laccase Biosensor
Soylemez, Saniye; Bekmezci, Aybüke; Göker, Seza; Toppare, Levent Kamil (Wiley, 2019-11-14)
Present work displays the preparation of an electrochemical biosensor using a conjugated polymer and laccase enzyme for catechol quantification in samples. The biosensing system is based on an enzyme immobilization on polymer modified graphite transducer surface. For that purpose, a random conjugated polymer, thienothiophene-benzoxadiazole-alt-benzodithiophene (BOTT), was coated onto a graphite electrode surface via drop casting method followed by immobilization of a biomolecule (laccase) for sensing experi...
Fabrication of gallic acid loaded Hydroxypropyl methylcellulose nanofibers by electrospinning technique as active packaging material
Aydogdu, Ayca; Şümnü, Servet Gülüm; Şahin, Serpil (Elsevier BV, 2019-03-15)
The objective of this study was to encapsulate gallic acid in Hydroxypropyl methylcellulose (HPMC)/poly-ethylene oxide (PEO) blend nanofiber by using electrospinning and examine the usage of nanofibers as active packaging materials. Gallic acid loaded nanofibers showed homogenous morphology. Gallic acid was loaded into nanofibers efficiently and nanofibers showed strong antioxidant activity. As the gallic acid amount increased, the TGA curves had shifted one stage to two stage degradation and degradation te...
Stereoregularity of fractionally crystallized poly(propylene oxide) samples by 13C-NMR spectroscopy
Alyürük, K.; Alyürük, Kemal (Wiley, 1989-4)
Several stereoregular poly(propylene oxide) (PPO) samples were synthesized employing either trimethyl aluminum hydrolyzates or Pruitt–Baggett type catalysts. Dilute isooctane solutions of these samples were fractionally crystallized by stepwise cooling from 333 K down to 273 K. The fractions which dissolve at 273 K were noncrystallizable and were further fractionated by GFC. The isolated fractions were characterized by 13C‐NMR, DSC, and viscometry techniques. Both structural (head‐to‐head and tail‐to‐tail l...
Development of novel asymmetric catalysts for various transformations and investigation of a rearrangement reaciıon
Yazıcıoğlu, Emre Yusuf; Tanyeli, Cihangir; Department of Chemistry (2010)
A new class of pyridine and sulfur containing chiral compounds are synthesized. Camphor sulfonyl chloride is chosen as a valuable chiral starting compound. In our synthetic strategy, sulfonylchloride moiety is first reduced to corresponding thiol compound by using triphenylphosphine and then the resultant thiol will be converted to various alkyl, aryl substituted derivatives. The second part of our strategy includes the pyridine ring construction on the carbonyl side of camphor with the formation of β-hydro...
Citation Formats
P. Öztürk, E. A. Yücel, and A. Akdağ, “New TEMPO containing polymers for all polymeric oxidation procedure,” JOURNAL OF POLYMER RESEARCH, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: