Gürsoy, Mehmet

Profile URL
https://hdl.handle.net/20.500.13091/11681
Name Variants
Gursoy, Mehmet Gürsoy, M.
Job Title
Email Address
mgursoy@ktun.edu.tr
Main Affiliation
02.01. Department of Chemical Engineering
Status
Current Staff
Website
ORCID ID
0000-0003-2275-9096
Scopus Author ID
57208454280
Turkish CoHE Profile ID
D2691CCBC2779FD4
Google Scholar ID
laqcZksAAAAJ
WoS Researcher ID
ABE-4756-2021

Research Topics

Domains
Physical Sciences
Fields
Materials ScienceEngineeringEnvironmental Science
Subfields
Surfaces, Coatings and FilmsBiomedical EngineeringWater Science and TechnologyMaterials Chemistry
Specific Research Areas
Surface Modification and Superhydrophobicity
Advanced Sensor and Energy Harvesting Materials
Membrane Separation Technologies
Diamond and Carbon-based Materials Research
Polymer Surface Interaction Studies

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
2
Research Products
GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
3
Research Products
QUALITY EDUCATION4
QUALITY EDUCATION
0
Research Products
GENDER EQUALITY5
GENDER EQUALITY
0
Research Products
CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
7
Research Products
AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
1
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
1
Research Products
RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
1
Research Products
CLIMATE ACTION13
CLIMATE ACTION
1
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

53

Citations

1227

h-index

19

Go to Scopus profile
Documents

52

Citations

994

Go to WoS profile

Publication Collaboration

Affiliation Name Count
Konya Technical University 44
Selçuk University 26
University of Technology Malaysia 10
Universiti Malaysia Pahang Al-Sultan Abdullah 4
Van Yüzüncü Yıl Üniversitesi 2
1 / 5
Data obtained from OpenAlex
Scholarly Output

43

Articles

42

Views / Downloads

129/52

Supervised MSc Theses

1

Supervised PhD Theses

0

WoS Citation Count

625

Scopus Citation Count

689

Patents

0

Projects

2

WoS Citations per Publication

14.53

Scopus Citations per Publication

16.02

Open Access Source

11

Supervised Theses

1

JournalCount
JOURNAL OF APPLIED POLYMER SCIENCE3
Progress in Organic Coatings3
Polymers2
SEPARATION AND PURIFICATION TECHNOLOGY2
Carbon Letters1
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Scopus Quartile Distribution

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Scholarly Output Search Results

Now showing 1 - 10 of 43
  • Article
    Citation - WoS: 20
    Citation - Scopus: 19
    Vapor Deposition of Transparent Antifogging Polymeric Nanocoatings
    (AMER CHEMICAL SOC, 2021-01-28) Yılmaz, Kurtuluş; Gürsoy, Mehmet; Karaman, Mustafa
    This study demonstrates the coating of a transparent and robust organic thin film having an excellent hydrophilicity-based antifogging property by an initiated chemical vapor deposition (iCVD) method. iCVD was able to synthesize linear and cross-liked poly(acrylic acid) (PAA) from the vapors of acrylic acid (AA) and ethylene glycol dimethacrylate (EGDMA) using tert-butyl peroxide (TBPO) as an initiator. High deposition rates of up to 35 nm/min were observed at low deposition temperatures. It was possible to control the quantity of comonomers in the as-deposited films by adjusting the partial pressure of the EGDMA cross-linking agent. The effect of the EGDMA partial pressure on chemical structure was studied using Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) techniques. FTIR and XPS spectra of the as-deposited films showed the complete retention of the monomer functionality during iCVD. Hydrophilicities and large-area uniformity of the coatings were revealed using water contact angle measurements. The as-deposited PAA film was the most hydrophilic with a water contact angle (WCA) of 7.0 degrees, while cross-linking with EGDMA increased the WCA values by up to 51.7 degrees. Results of various tests, which were based on exposing the coated surfaces to artificial fog and hot water vapor, showed the excellent antifogging property of the coatings. Films were never fogged upon extensive and long-term exposure (2 months) to humid air.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 6
    Fabrication of Paper-Based Microfluidic Devices Using Pecvd for Selective Separation
    (Polymer Society of Korea, 2021-06-01) Gürsoy, M.
    The interest in microfluidic devices is increasing day by day due to consuming much lower amount of chemicals. Paper-based microfluid device is one of the most important types of microfluidic device, due to the inherent superior properties of papers. This study set out to develop a novel approach to fabricate a pH-responsive paper-based microfluidic device using plasma enhanced chemical vapor deposition (PECVD). Magnets were used for masking the paper surface. Poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) thin film having ionizable groups was coated on the inner surfaces of the microfluidic channel. Hydrophobic poly (2,2,3,4,4,4-hexafluoro butyl acrylate) (PHFBA) thin film was used to produce the barrier of the microchannel. A standard chromatography paper was successfully transformed into pH-responsive paper-based microfluidic device. Due to its inherent vapor-based nature, PECVD method provided excellent conformal coverage on the paper surface without disrupting the surface structures. The selective separation ability of the microfluidic device was tested at different pH values using anionic and cationic analytes. The microfluidic device demonstrated selective separation ability of analytes depending on the pH value of the medium. The obtained results showed that the differences between the retentions of both analytes on the microfluidic device at different pH values are much more than those of the uncoated papers under the same conditions.[Figure not available: see fulltext.] © 2021, The Polymer Society of Korea and Springer.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 9
    Uniform Deposition of Large-Area Graphene Films on Copper Using Low-Pressure Chemical Vapor Deposition Technique
    (Springer Japan Kk, 2021-11-29) Gürsoy, Mehmet; Çıtak, Emre; Karaman, Mustafa
    Large-area graphene of the order of centimeters was deposited on copper substrates by low-pressure chemical vapor deposition (LPCVD) using hexane as the carbon source. The effect of temperature and the carrier gas flowrates on the quality and uniformity of the as-deposited graphene was investigated using the Raman analysis. The film deposited at 870 degrees C with a total carrier gas flowrate of 50 sccm is predominantly single-layer with very low defects according to the Raman spectra. The 2D/G peak intensity ratios obtained from the Raman spectra of samples from three different locations of graphene deposited on a whole copper catalyst was used to calculate the large-area uniformity. Based on the results, a very high uniformity of 89.6% was calculated for the graphene deposited at 870 degrees C. The uniformity was observed to decrease with increasing temperature. Similar to the thickness uniformity, the electrical conductivity values obtained as a result of I-V measurements and water contact angle measurements were found to be close to each other for the graphene deposited under the same deposition conditions.
  • Article
    Citation - WoS: 2
    Citation - Scopus: 3
    Fabrication of Ph-Responsive Pdpaema Thin Film Using a One-Step Environmentally Friendly Plasma Enhanced Chemical Vapor Deposition
    (Mdpi, 2024-03-14) Gürsoy, Mehmet
    In recent years, there has been growing interest in pH-responsive polymers. Polymers with ionizable tertiary amine groups, which have the potential to be used in many critical application areas due to their pKa values, have an important place in pH-responsive polymers. In this study, poly(2-Diisopropyl aminoethyl methacrylate) (PDPAEMA) thin films were coated on various substrates such as glass, fabric, and silicon wafer using a one-step environmentally friendly plasma enhanced chemical vapor deposition (PECVD) method. The effects of typical PECVD plasma processing parameters such as substrate temperature, plasma power, and reactor pressure on the deposition rate were studied. The highest deposition rate was obtained at a substrate temperature of 40 degrees C, a reactor pressure of 300 mtorr, and a plasma power of 60 W. The apparent activation energy was found to be 17.56 kJ/mol. Based on the results of this study, uniform film thickness and surface roughness were observed in a large area. The PDPAEMA thin film was exposed to successive acid/base cycles. The results showed that the pH sensitivity of the thin film produced by the PECVD method is permanent and reversible.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 8
    Implementation of the Pecvd Process To Produce a Novel Range of Filler-Polymer Perlites for Use in Epoxy Composites
    (Korean Society of Industrial Engineering Chemistry, 2024-05-01) Kara, A.S.; Ahmetli, G.; Karaman, M.; Kocaman, S.; Işık, M.; Gürsoy, M.
    This study examines the use of expanded perlite powder (ExP), a natural rock, as reinforcement in bisphenol-A type epoxy resin. The surface of ExP has been coated using the PECVD method with different polymers such as poly(hexafluorobutyl acrylate) (PHFBA) and poly(glycidyl methacrylate) (PGMA). ExPs before and after the coating process underwent characterization using various techniques such as X-ray diffraction (XRD), thermogravimetric analysis (TGA), and Scanning Electron Microscopy (SEM). The effects of filler ratio and different polymer coatings on composite properties were investigated. The higher tensile strengths for uncoated, PHFBA-coated, and PGMA-coated ExP composites were determined as 109 MPa, 132 MPa, and 152 MPa, respectively. The surfaces of the polymer-coated ExP composites were found to be hydrophobic and water sorption was lower in these composites. ExPs have improved thermal stability and flammability properties. In addition, PHFBA-coated ExP composite was found more resistant to UV radiation and the hydrothermal environment. © 2023 The Korean Society of Industrial and Engineering Chemistry
  • Master Thesis
    Flor İçermeyen Hidrofobik İnce Filmlerin PECVD Yöntemi ile Üretimi
    (2025) Ay, Burak; Gürsoy, Mehmet
    Florlu kimyasallar, hidrofobik ince filmlerin üretiminde yaygın olarak kullanılmaktadır. Ancak, bu kimyasalların çevre ve insan sağlığı üzerindeki riskleri konusundaki endişeler her geçen gün artarak devam etmektedir. Bu nedenle, flor içermeyen alternatif hidrofobik kaplama malzemelerinin geliştirilmesi önemlidir. Poli(2-etilheksil akrilat) (PEHA), uzun karbon zincirleri ile hidrofobik kaplamaların üretimi için önemli bir potansiyele sahiptir. Bu tez çalışmasında, PEHA ince filmleri düşük sıcaklıkta, tek aşamalı ve çevre dostu plazma destekli kimyasal buhar biriktirme (PECVD) yöntemiyle farklı alttaşların yüzeylerine kaplanmıştır. Reaktör basıncı, alttaş sıcaklığı ve plazma gücünün PEHA ince filminin kaplama hızı üzerindeki etkileri araştırılmış ve en yüksek kaplama hızı; 5°C alttaş sıcaklığı, 30 W plazma gücü ve 150 mTorr reaktör basıncında 19,1 nm/dak olarak ölçülmüştür. PEHA ince filminin ıslatma, kimyasal ve morfolojik özellikleri incelenmiştir. PEHA ince filmi, hidrofobik özellikler sergilemiş ve kaplanmış kumaşın su ile temas açısı 139,8° olarak ölçülmüştür. PEHA ince filminin hidrofobikliği, su dışında, gündelik yaşamda kullanılan çeşitli sıvılara karşı da test edilmiştir. Ayrıca, PEHA ince filmleri; çözücü direnci, yıkama ve yapışma testlerine karşı da mükemmel dayanıklılık göstermiştir.
  • Article
    Large-Area Deposition of Hydrophobic Poly(Hexafluorobutyl Acrylate) Thin Films on Wetting-Sensitive and Flexible Substrates Via Plasma-Enhanced Chemical Vapor Deposition
    (Mdpi, 2025-03-17) Yilmaz, Kurtulus; Gursoy, Mehmet; Karaman, Mustafa
    In this study, hydrophobic poly(hexafluorobutyl acrylate) (PHFBA) thin films were successfully deposited over a large area of 25 x 50 cm using plasma-enhanced chemical vapor deposition (PECVD). Key parameters, including plasma power and the distance between the plasma antenna and the substrate, were optimized to achieve the highest deposition rate while ensuring uniformity and defect-free coatings. The optimal conditions were determined as 5 W plasma power and a 9 cm antenna-substrate distance, yielding a maximum deposition rate of 11.3 nm/min. PHFBA's low fluorine content makes it a more environmentally and biologically friendly alternative compared to heavily fluorinated polymers, addressing concerns about toxicity and environmental impact. The coatings were applied to a flexible and wetting-sensitive paper towel substrate, which was successfully coated without any visible defects. The contact angle measurements confirmed the hydrophobic nature of the films, with a maximum water contact angle of 131.9 degrees after the deposition of PHFBA. This study highlights the potential of PECVD as an efficient and scalable method for producing hydrophobic coatings, combining high-performance properties with improved environmental considerations. The results not only validate PECVD as a scalable and precise method for thin film fabrication but also open new possibilities for its use in applications requiring durable and functional surface modifications.
  • Article
    Pecvd Yöntemi ile Polimerik Hidrojel İnce Filmlerin Üretimi
    (2019) Gürsoy, Mehmet
    Bu çalışma ile hidrojel özellikteki PHPMA (poli(hidroksipropil metakrilat)) ince filmleri gaz fazı bir yöntem olan plazma destekli kimyasal buhar biriktirme (PECVD) yöntemi ile üretilmiştir. Substrat sıcaklığının, reaktör basıncının ve plazma gücünün, PHPMA ince filmlerinin kaplama hızları üzerine etkileri incelenmiştir. PECVD parametrelerinin, PHPMA ince filmlerinin morfolojileri, kimyasal yapıları ve ıslanabilirlik özellikleri üzerine etkileri açığa çıkarılmıştır. Ayrıca, bu çalışma kapsamında PHPMA ince filmlerinin, kaplama mekanizması ve kinetiği de incelenmiştir. En yüksek kaplama hızı (120,2 nm/dk) 20 ?C substrat sıcaklığında, 250 mtorr reaktör basıncında ve 20 W plazma gücünde elde edilmiştir. PHPMA kaplamasının aktivasyon enerjisi -22,16 kJ/mol olarak bulunmuştur.
  • Article
    Citation - WoS: 28
    Citation - Scopus: 25
    Initiated Chemical Vapor Deposition of Poly(ethylhexyl Acrylate) Films in a Large-Scale Batch Reactor
    (AMER CHEMICAL SOC, 2019-07-24) Yılmaz, Kurtuluş; Şakalak, Hüseyin; Gürsoy, Mehmet; Karaman, Mustafa
    The present study demonstrates the successful deposition of poly(ethylhexyl acrylate) thin films in a large-scale closed-batch initiated chemical vapor deposition (iCVD) system. A horizontal cylindrical stainless-steel vacuum tank, which is highly utilized in industrial vacuum applications, was used as iCVD reactor. The effects of substrate temperature, precursor ratio, and pressure on the deposition rates were studied, and the results showed that a deposition rate of 315 nm/min can be achieved in a single run at a reactor pressure of 600 mTorr. At a lower chamber pressure of 400 mTorr, deposition rate decreases, whereas film uniformity increases. By carrying out depositions at successive cycles, thicker films could be obtained, without the need for extensive monomer consumption. The yield percentage was found to be 3.5 for the films deposited in closed-batch system at 400 mTorr, which is 35-fold larger than that of the classical iCVD flow system.
  • Article
    Initiated Chemical Vapor Deposition (icvd) of Poly(acrylic Acid): a Comparison Between Continuous and Closed-Batch Icvd Approaches
    (Konya Teknik Univ, 2024-09-01) Yılmaz, Kurtuluş; Sevgili Mercan, Emine; Gursoy, Mehmet; Karaman, Mustafa; Mercan, Emine Sevgili
    In this study, poly(acrylic acid) (PAA) thin films were deposited on silicon wafer and glass surfaces by initiated chemical vapor deposition (iCVD) method using di-tert-butyl peroxide (TBPO) as the initiator and acrylic acid (AA) as the monomer. During iCVD, two different precursor feeding approaches, namely continuous and closed-batch, were employed. The effects of substrate temperature and the precursor feeding approaches on the deposition rates and surface morphology of the films were investigated. The highest deposition rates for the continuous and closed-batch iCVD approaches were found as 26.1 nm/min and 18.6 nm/min, respectively, at a substrate temperature of 15 degrees C. FTIR analysis of the films deposited by both approaches indicated high structural retention of the monomer during the polymerization. AFM results indicated that, PAA thin films possessed low RMS roughness values of 2.76 nm and 1.84 nm using continuous and closed-batch iCVD, respectively. Due to the slightly higher surface roughness of the film deposited under continuous iCVD, that film exhibited a lower water contact angle of 16.1 degrees than the film deposited in closed-batch iCVD. In terms of monomer utilization ratio, closed-batch system was found to be more effective, which may help to minimize the carbon footprint of iCVD process.