Cihaner, Atilla

Profile URL
https://hdl.handle.net/20.500.14411/6658
Name Variants
C.,Atilla A., Cihaner C., Atilla Cihaner A. A.,Cihaner Cihaner, Atilla Cihaner,A. Atilla Cihaner Atilla, Cihaner Cihaner,Atilla Cihaner, A. Cihaner, A
Job Title
Profesör Doktor
Email Address
atilla.cihaner@atilim.edu.tr
Main Affiliation
Chemical Engineering
Status
Website
ORCID ID
0000-0001-7605-2374
Scopus Author ID
55925768200
Turkish CoHE Profile ID
Google Scholar ID
ECKd5ZgAAAAJ
WoS Researcher ID
AAC-9468-2021

Research Topics

Domains
Physical Sciences
Fields
Materials ScienceEngineeringChemical Engineering
Subfields
Polymers and PlasticsElectrical and Electronic EngineeringBioengineeringMaterials Chemistry
Specific Research Areas
Conducting polymers and applications
Organic Electronics and Photovoltaics
Transition Metal Oxide Nanomaterials
Analytical Chemistry and Sensors
Luminescence and Fluorescent Materials

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
0
Research Products
GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
1
Research Products
QUALITY EDUCATION4
QUALITY EDUCATION
0
Research Products
GENDER EQUALITY5
GENDER EQUALITY
0
Research Products
CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
1
Research Products
AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
3
Research Products
DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
Research Products
SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
CLIMATE ACTION13
CLIMATE ACTION
0
Research Products
LIFE BELOW WATER14
LIFE BELOW WATER
0
Research Products
LIFE ON LAND15
LIFE ON LAND
0
Research Products
PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
0
Research Products
Documents

101

Citations

2386

h-index

28

Go to Scopus profile
Documents

103

Citations

2274

Go to WoS profile

Publication Collaboration

Affiliation Name Count
Atilim University 105
Middle East Technical University 60
Çanakkale Onsekiz Mart Üniversitesi 25
Van Yüzüncü Yıl Üniversitesi 10
Ankara University 3
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Data obtained from OpenAlex
Scholarly Output

121

Articles

108

Views / Downloads

133/161

Supervised MSc Theses

12

Supervised PhD Theses

0

WoS Citation Count

2274

Scopus Citation Count

2367

Patents

0

Projects

13

WoS Citations per Publication

18.79

Scopus Citations per Publication

19.56

Open Access Source

6

Supervised Theses

12

JournalCount
Electrochimica Acta15
Journal of Electroanalytical Chemistry13
Turkish Journal of Chemistry6
Dyes and Pigments6
Organic Electronics6
Current Page: 1 / 8

Scopus Quartile Distribution

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Scholarly Output Search Results

Now showing 1 - 10 of 121
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Synthesis and Characterization of New Dithienosilole Based Copolymers
    (Electrochemical Soc inc, 2016) Karabay, Lutfiye Canan; Al-Jumaili, Mohammed; Cihaner, Atilla
    2-Ethylhexyl substituted dithienosilole based soluble polymers including thiophene (1) and bithiophene (2) units were synthesized via Stille coupling reaction. The presence of 2-ethylhexyl substituents on the silole ring gave solubility property to the polymers in common solvents. According to gel permeation chromatography measurements, the weight average molecular weights of the polymers 1 and 2 were found to be as 70,977 with a polydispersity index of 2.30 and 110,439 with a PDI of 1.42, respectively. Fluorescent polymers in toluene solution have maximum emisssion bands at 634 nm for the polymer 1 and 613 nm for the polymer 2. Chemical and electrochemical doping of the polymers in the solution and in the film forms were monitored by using ultraviolet-visible spectroscopic technique. The polymers exhibited chromic (chemochromic and electrochromic) properties. While the colors of the neutral polymer films are purple for the polymer 1 and reddish brown for the polymer 2, both polymers are transparent sky blue at their oxidized states. The bandgaps of polymers in film forms were calculated as 1.81 eV for the polymer 1 and 1.92 eV for the polymer 2. Also, electrochromic device applications of the polymers were done. Electrochemical and optical behaviors of the polymers demonstrated that they can be good candidates for optoelectronic applications. (C) 2016 The Electrochemical Society. All rights reserved.
  • Master Thesis
    Yağ Asitlerinden Yüksek Kükürt İçerikli Polimerik Malzemelerin Sentezi ve Karakterizasyonu
    (2021) Berk, Hasan; Cihaner, Atilla
    Doğal kaynaklardan ve petrol rafinerilerinden elde edilen elementel kükürt, yaygın olarak bulunabilen ve pahalı ve zehirli olmayan bir malzeme olmasına rağmen, onun için büyük ölçekli üretken kullanımlar bulmak önemli bir ilerleme olacaktır. Öte yandan, gelecekte bitkisel yağların yenilenebilir kaynaklardan polimer üretiminde kilit rol oynaması beklenmektedir. Bu çalışmada, çeşitli miktarlarda yağ asitleri (oleik asit (OA), linoleik asit (LA) ve linolenik asit (LnA)) içeren yüksek kükürt içerikli yeni bir polimer serisi ters vulkanizasyon yöntemi ile sentezlenmiş ve başarılı bir şekilde karakterize edilmiştir. Özellikle, çift bağların ve serbest alkil zincirlerinin polikükürt kopolimerleri üzerindeki etkisi, bir çift bağlı OA, iki çift bağlı LA ve üç çift bağlı LnA kullanılarak sistematik olarak araştırılmıştır. İlgili kopolimerler yaygın organik çözücülerde çözünür, işlenebilir ve elektroaktiftir. Öte yandan, polimer yapısında yağ asitlerinin bulunması nedeniyle, kopolimerler reaktif fonksiyonel birimlere (karboksilik grup-COOH) sahiptir ve diol ile kimyasal modifikasyonları ester bağlarının oluşumuna yol açar. Bu post polimerizasyon, yüksek moleküler ağırlıklı yeni polimerlerin elde edilmesi ile sonuçlanır. Son olarak, kopolimerlerin ağır metal iyonlarının (Paladyum (II) ve Cıva (II)) uzaklaştırılmasında ve kullanımı test edilmiştir. Sonuçlar, polimerlerin ağır metal iyonu uzaklaştırma için potansiyel malzeme olabileceğini göstermiştir.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 5
    Synthesis of a regular polymer containing pseudo-polyether cages
    (Elsevier Science Sa, 2005-04) Cihaner, A; Önal, AM
    A new compound consisting of 2-thienyl units linked by polyether bridge has been synthesized and its electrochemical polymerization was performed via constant potential electrolysis (CPE) in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in CH3CN. Chemical polymerization was carried out using FeCl3 as oxidizing agent. It is found that both methods gave the same polymer product without any cleavage of the polyether bridge between thiophene (Th) rings. Although as synthesized polymers exhibited no conductivity, they gain conductivity via chemical doping using 12 vapor exposure. The polymers were characterized using FTIR spectroscopic technique and 12 doping was monitored using in-situ electron spin resonance (ESR) spectroscopy. Thermal behavior of electrochemically prepared polymer was investigated using differential scanning calorimetry, DSC and thermogravimetric analysis, TGA. (c) 2005 Elsevier B.V. All rights reserved.
  • Article
    Citation - WoS: 28
    Citation - Scopus: 30
    Functionalized Polysulfide Copolymers With 4-Vinylpyridine Via Inverse Vulcanization
    (Elsevier Science Bv, 2019-06) Berk, Hasan; Balci, Burcu; Ertan, Salih; Kaya, Murat; Cihaner, Atilla
    A new series of functional polysulfide copolymers called poly(sulfur-random-4-vinylpyridine) (poly(S-r-4VP)) was synthesized via inverse vulcanization technique by ring opening polymerization of elemental sulfur in the presence of 4-vinylpyridine (4VP). The corresponding copolymers can be post functionalized by using amine group in 4VP unit to get polymers bearing various properties. Elemental sulfur was heated up to 160 degrees C and 4VP was added slowly to a clear yellowish orange colored liquid at this temperature. The reaction mixture was vitrified to form a reddish-brown polymeric material at 180 degrees C in 1 h. The products were characterized by using FTIR, NMR, and Raman spectroscopic techniques. Poly(S-r-4VP) copolymers are soluble in common solvents like dichloromethane, chloroform and tetrahydrofuran. Weight-average molecular weights of poly(S-r-4VP) copolymers with different wt% 4VP were measured by using gel permeation chromatography technique. The polysulfide copolymers with different wt% 4VP have high weight-average molecular weights with polydispersity indeces (PDI) in a range from 1.88 to 4.06 measured by gel permeation chromatography. Post functionalization of the copolymer with 50 wt% 4VP as an example was performed successfully by using alkyl bromide to get N-alkyl quaternized 4VP in polymer backbone.
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Spectroelectrochemical Investigation of the Anodic Oxidation of Dibenzo-18
    (Elsevier Science Sa, 2004-10) Cihaner, A; Önal, AM
    Poly(dibenzo-18-crown-6) (poly-DB18C6) was synthesized by electrochemical oxidation of dibenzo-18-crown-6 (DB18C6) using a mixture of acetonitrile and dichloromethane as the solvent and tetrabutylammonium tetrafluoroborate (TBABF(4)) or tetrabutylammonium hexafluorophosphate (TBAPF(6)) as supporting electrolyte. The anodic polymerization of DB18C6 was investigated using in situ ESR and in situ UV-Vis spectroscopic techniques. Spectroelectrochemical (SPEL), properties and thermal analysis of the resulting polymers have been investigated using UV-Vis spectroscopy, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). (C) 2004 Elsevier B.V. All rights reserved.
  • Article
    Citation - WoS: 52
    Citation - Scopus: 57
    Members of Cmy Color Space: Cyan and Magenta Colored Polymers Based on Oxadiazole Acceptor Unit
    (Amer Chemical Soc, 2011-12-27) Ozkut, Merve Icli; Algi, Melek Pamuk; Oztas, Zahide; Algi, Fatih; Onal, Ahmet M.; Cihaner, Atilla
    In this study, three novel oxadiazole-based polymers were synthesized and their electrochemical and optical properties were investigated. The polymers were found to have both p- and n-type doping properties accompanied by electrochromic response. Two polymer films exhibit cyan and magenta colors, which constitute two legs of CMY color spaces, in their neutral states and they are soluble in common-organic solvents. According to the color mixing theory, all colors in the visible spectrum including black color can be obtained by using these polymers with a yellow colored electrochromic polymer. Among these polymers, the polymer bearing propyledioxythiophene donor units has some superior properties like high stability (it retains 94% of its electroactivity after 2000 cycles), solubility, and high coloration efficiency (230 cm(2)/C), whereas as expected ethylenedioxythiophene containing one has the lowest band gap as 1.08 eV.
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Electrochemical Polymerization and Characterization of Polyether-Substituted Aniline Derivatives
    (Wiley, 2007-04-13) Tirkes, Seha; Cihaner, Atilla; Oenal, Ahmet M.; Önal, Ahmet M.
    New compounds consisting of aniline units linked by polyether bridges have been synthesized and their electrochemical polymerization was performed via constant potential electrolysis and cyclic voltammetry in an aqueous solution containing 3.0 moI L-1 H2SO4. Chemical polymerization was carried out using (NH4)(2)S2O8 as oxidizing agent. It was found that both methods gave the same polymer product without any cleavage of the polyether bridge between aniline rings. The polymers were characterized using the Fourier transform infrared spectroscopic technique and the thermal behavior of electrochemically prepared polymers was investigated using thermogravimetric analysis. Spectroelectrochemical properties of the films were investigated using the in situ UV-visible spectroscopic technique. (c) 2007 Society of Chemical Industry.
  • Article
    Citation - WoS: 16
    Citation - Scopus: 16
    Electrochemical and Optical Characterization of a Multielectrochromic Copolymer Based on 3,4-Ethylenedioxythiophene and Functionalized Dithienylpyrrole Derivative
    (Pergamon-elsevier Science Ltd, 2019-01) Tutuncu, Esra; Ozkut, Merve Icli; Balci, Burcu; Berk, Hasan; Cihaner, Atilla; Icli Ozkut, Merve
    A novel conjugated copolymer, namely poly(3,4-ethylenedioxythiophene-co-1-(3,5-bis(trifluoromethyl)phenyl)-2,5-di(thiophen-2-yl)-1H-pyrrole) (P(EDOT-co-1)) was synthesized via electropolymerization method from a mixture of 3,4-ethylenedioxythiophene and 1-(3,5-bis(trifluoromethyl)phenyl)-2,5-di(thiophen-2-yl)-1H-pyrrole comonomers. The corresponding copolymer has an optical band gap of 1.7 eV and 41% optical contrast at 525 nm with a coloration efficiency of 258 cm(2)/C and 1.4 s switching time. The copolymer has a multi-electrochromic behavior: It has dark purple, purple, gray, green and cyan colors at different oxidation states. Electrochemical stability of P(EDOT-co-1) copolymer was also investigated and it was observed that the copolymer retained 86% of its stability under ambient conditions in the presence of oxygen (without purging the electrolyte solution with any inert gas) according to the current density and 83% according to the deposited charge even after 1000 redox cycles.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 6
    Synthesis and Polymerization of 2-And 3-Substituted Thiophene Derivatives Linked by Polyether Bridges
    (Elsevier Science Sa, 2004-11) Tirkes, S; Cihaner, A; Önal, AM
    New compounds consisting of 2- and 3-thienyl units linked by polyether bridges have been synthesized and their electrochemical polymerization was performed via constant potential electrolysis (CPE) in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in CH3CN. 2-Thienyl monomers (I and II), but not 3-thienyl monomers (III and IV), were also polymerized via chemical oxidation, which yielded broken pi-conjugated polymer products. The polymers were characterized using H-1 NMR and FT-IR spectroscopic techniques. It was found that both chemical and electrochemical oxidation of 2-thienyl monomers gave mainly poly(2,2'-bithiophenemethylene) due to elimination of polyether chains during the polymerization reaction. On the other hand, electrochemical oxidation of 3-thienyl monomers resulted in corresponding polymers without any cleavage of polyether bridges. Spectroelectrochemical (SPEL) properties of the products were investigated using UV-Vis spectroscopic techniques. (C) 2004 Elsevier B.V. All rights reserved.
  • Article
    Citation - WoS: 9
    Citation - Scopus: 11
    Propylenedioxy and Benzimidazole Based Electrochromic Polymers
    (Electrochemical Soc inc, 2016) Cansu-Ergun, E. G.; Onal, A. M.; Cihaner, A.
    In this study, three acceptor units were synthesized by substituting cyclohexane, cycloheptane and cyclooctane rings at 2-C position of benzimidazole. These acceptor units were coupled with dihexyl substituted 3,4-propylenedioxythiophene (PRODOT-C6) donor segments and the resulting donor-acceptor-donor monomers were polymerized via potentiostatic and potentiodynamic methods to obtain their corresponding conjugated polymers (CP). Monomers and their polymers were investigated in terms of the ring size of the substituent on the acceptor unit and their electrochemical and optical behaviors were reported. The monomers exhibited dual absorption bands (at about 310 nm and 520 nm) due to their donor-acceptor pattern. CP films on indium tin oxide conducting substrate were investigated in a monomer free electrolytic solution. The polymer films exhibited quasi-reversible redox behavior due to doping/dedoping which was accompanied by a reversible electrochromic behavior. All three polymer films showed similar multichromic behaviors: green color in the neutral state, gray in the oxidized state, and brick-red in the reduced state. Band gap values (E-g) were elucidated via both electrochemical and optical methods. Moreover, electrochromic device (ECD) was constructed with one of the polymer films (cyclohexane ring bearing benzimidazole and PRODOT-C6 containing polymer) with poly(3,4-ethylenedioxythiophene) (PEDOT). (C) 2016 The Electrochemical Society. All rights reserved.