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

2379

h-index

28

Go to Scopus profile
Documents

103

Citations

2265

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

122/151

Supervised MSc Theses

12

Supervised PhD Theses

0

WoS Citation Count

2265

Scopus Citation Count

2360

Patents

0

Projects

13

WoS Citations per Publication

18.72

Scopus Citations per Publication

19.50

Open Access Source

6

Supervised Theses

12

JournalCount
Electrochimica Acta15
Journal of Electroanalytical Chemistry13
Turkish Journal of Chemistry6
Dyes and Pigments6
Organic Electronics6
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Scholarly Output Search Results

Now showing 1 - 10 of 121
  • 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: 16
    Citation - Scopus: 17
    A New Carborane Based Polymeric Electrochrome
    (Elsevier Science Sa, 2013-10) Cansu-Ergun, Emine Gul; Cihaner, Atilla
    New electrochromic copolymers of 3,4-ethylenedioxythiophene and di(m-carboranyl thiophene) were synthesized, characterized and their electro-optical properties were reported. The copolymers were successfully prepared from various monomer feed ratios using electrochemical polymerization technique. It can be conjectured that electrochemical and optical properties of the copolymers can be adjusted by playing with monomer feed ratios. For example, the maximum wavelength of poly(3,4-ethylenedioxythiophene) at 600 nm can be shifted to lower values (i.e., 522 nm) by increasing the ratio of di(m-carboranyl thiophene) in the monomer mixture. The copolymer films also have low band gap values between 1.69 and 1.82 eV and showed electrochromic properties; purple when neutralized and transparent sky blue when oxidized. Also, during redox switching the films exhibited a percent transmittance change between 32% and 46% with a switching time between 1.0 s and 1.3 s. (C) 2013 Elsevier B.V. All rights reserved.
  • Master Thesis
    En Az Renkli Karbazol ve Karboran Esaslı Elektroaktif Bir Polimerin Sentezi ve Elektrokromik Cihazlarda Karşıt Elektrot Olarak Kullanımı
    (2015) Al-mahdawi, Dheyaa; Cihaner, Atilla
    Karbazol ve karboran birimleri esaslı yeni bir elektroaktif üçlü monomer (1) potentiostatik ve potentiodinamik yöntemlerle 0.1 M tetrabütilamonyum hekzaflorofosfat/CH2Cl2 elektrolit çözeltisi içerisinde başarılı bir şekilde polimerleştirilmiştir. İlgili polimerin (P1) elektrokimyasal davranımı elektroanalitik yöntemler kullanılarak incelenmiştir. Pt elektrot yüzeyine sıkıca kaplanmış P1 polimer filmi ortam koşulları altında redoks halleri arasında anahtarlanırken yüksek dayanıklılık göstermiştir. Örneğin, polimer filmi redoks halleri arasında anahtarlanırken 1000 döngü sonrası elektroaktifliğinin %73'ünü korumuştur. Diğer bir taraftan, spektroelektrokimyasal çalışmalar göstermiştir ki polimer filminin görünür tafy bölgesinde soğurma bandı yoktur ve maksimum dalga boyu 307 nm olup 2.5 eV değerinde bir band aralığına sahiptir. Yükseltgenirken polimer filmi (58 nm) dikkate değer bir renk değişimi göstermemiştir. Sonuçlar polimer filminin renksiz ve tüm redox hallerinde %90'ın üzerinde bir geçirgenliği olduğunu göstermiştir. Ayrıca, polimer filmi nötr ve yükseltgen halleri arasında anahtarlanırken 555 nm'de % 6.8'lik bir yüzde geçirgenlik değişimi ve 12 cm2/C'luk bir renk etkinliği göstermiştir. Polimerin bu en az renk değişimi özelliği kendisini elektrokromik cihazlarda umut verici bir karşıt elektrot malzemesi yapmıştır. Poli(3,4-etilendioksitiyofen) (PEDOT) filmi ile karşılaştırıldığında (540 nm' de %61), P1 ve PEDOT esaslı hazırlanan cihaz benzer optiksel davranımlar göstermiştir. Cihaz 580 nm'de %51'lik bir yüzde geçirgenlik değişimine sahiptir. Buna ek olarak, cihaz ortam şartlarında yüksek dayanıklılık, yüksek redoks ve optiksel kararlılık göstermiştir, zira 1000 anahtarlanma sonrasında dahi farklı redoks hallerine anahtarlandığında elektro-optiksel kararlılığının %88'ini korumuştur.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Electrochemical Polymerization of Para-Substituted Haloanilines
    (Taylor & Francis inc, 2006-01) Cihaner, A; Önal, AM
    Polyhaloanilines: poly(4-fluoroaniline) (P4FAN), poly(4-chloroaniline) (P4CAN), and poly(4-bromoaniline) (P4BAN), are synthesized from para-substituted haloaniline monomers; 4-fluoroaniline (4FAN), 4-chloroaniline (4CAN), and 4-bromoaniline (4BAN), respectively, via constant potential electrolysis (CPE) in acetonitrile-water mixture (1:1 v/v) with NaClO4 as supporting electrolyte. Prior to CPE, electrochemical behavior of the monomers were investigated in organic medium utilizing cyclic voltammetry (CV). The course of CPE was monitored using in-situ UV-VIS spectroscopic technique. Characterization of polymer products have been carried out using FT-IR and NMR spectroscopic techniques and thermal behaviors were studied using differential scanning calorimeter (DSC). Polyhaloanilines synthesized by electrochemical oxidation were doped using iodine and the change in the paramagnetic behavior was monitored by ESR, UV-VIS, and FT-IR.