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  • دکتری (1394)

    مهندسی پليمر

    دانشگاه صنعتی اميرکبير، تهران، ایران

  • کارشناسی‌ارشد (1388)

    مهندسی پليمر

    دانشگاه صنعتی اميرکبير، تهران، ایران

  • کارشناسی (1386)

    مهندسی پلیمر

    دانشگاه صنعتی اميرکبير، تهران، ایران

  • مطالعه رابطه ساختار- خواص چسب‌های نانوکامپوزیتی
  • نانوکلوئيدهای پليمری

    سمیه قاسمی راد در سال 1394 تحصیلات دانشگاهی خود را از مقطع کارشناسی تا دکتری در رشته مهندسی پلیمر در دانشگاه صنعتی امیرکبیر (پلی تکنیک تهران) به پایان رساند. وی در سال 1395 به تدریس در آزمایشگاه شیمی فیزیک پلیمرها در دانشکده مهندسی پلیمر همین دانشگاه پرداخت. پس از انجام پژوهش پسادکتری، به عنوان استادیار و عضو هیأت علمی گروه مهندسی پلیمر – فرآورش در دانشکده مهندسی شیمی دانشگاه تربیت مدرس مشغول فعالیت شد. مطالعه نظری و تجربی ارتباط ساختار - شکست سامانه‌های پلیمری و نانوکامپوزیت‌ها در توده و فصل مشترک و تهیه (نانو)کلوئیدهای پلیمری از جمله علایق تحقیقاتی ایشان است.

    ارتباط

    رزومه

    Introducing water-redispersible powderable acrylic adhesives using Persian gum

    A Ahmadi-Dehnoei, S Ghasemirad
    Journal Papers , , {Pages }

    Abstract

    Designing of desired nanocomposite pressure-sensitive adhesives through tailoring the structural characteristics of polysilsesquioxane-acrylic core-shell nanoparticles

    A Ahmadi-Dehnoei, S Ghasemirad
    Journal Papers , , {Pages }

    Abstract

    Eco-Friendly and Smart Polymer Systems

    H Mirzadeh, AA Katbab
    Journal Papers , , {Pages }

    Abstract

    Preparation and Improvement of Shear Strength of a Water-Redispersible Waterborne Acrylic Adhesive for Making Cellulose Joints

    Ali Ahmadi-Dehnoei, Somayeh Ghasemirad, Reza Shiri
    Journal PapersJournal of Applied Research of Chemical-Polymer Engineering , Volume 3 , Issue 1, 2019 May 10, {Pages 47-57 }

    Abstract

    Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, PO Box 14115-114, Tehran, IranResearch subject: In recent years, many attempts have been devoted to industrial usage of biobased adhesives, as a result of fossil resources shortage and unusual increase in oil-based products prices. Adhesion s trength of this category of adhesives, however, needs improvement. Research approach: In the current s tudy, lap-shear s trength of joints made of a natural polymer, Persian gum (PG), exuded from wild almond tree, and three various substrates, glass, poly (ethylene terephthalate), and cellulose fabric, was inves tigated. Furthermore, in order to prepare powder acrylic adhesive and evaluate its adhesion to afore

    تهیه و تقویت استحکام برشی چسب اکریلیکی پایه‌آبی با قابلیت بازپراکنش در آب برای ایجاد مفصلهای سلولزی‎

    احمدی دهنوئی, علی, قاسمی راد, شیری‎
    Journal Papers , , {Pages }

    Abstract

    Environmentally Friendly Hybrid Polysilsesquioxane-Poly (Butyl Acrylate) Nanocomposite: Film Properties

    Ali Ahmadi Dehnoei, Somayeh Ghasemirad
    Conference PapersInternational Seminar on Polymer Science and Technology , 2018 November 10, {Pages 170-173 }

    Abstract

    Inorganic-organic core-shell polysilsesquioxane-poly(butyl acrylate) hybrid latex nanoparticles were synthesized via emulsion polymerization. FTIR spectroscopy and dynamic light scattering (DLS) confirmed core-shell structure of the resultant hybrid latex nanoparticles. Hybrid core-shell nanocomposite film underwent drying in a shorter period of time in comparison with the polysilsesquioxane latex, due to the lower Brownian diffusivity of its latex nanoparticles. It also revealed less hydrophilicity and higher resistance to water whitening, compared to the seed latex film.

    Concurrent determination of two opposite phase transitions in a soft polymer nanocomposite by rheology and their theoretical evaluations

    Zahra Khoubi-Arani, Naser Mohammadi, Somayeh Ghasemirad
    Journal PapersEuropean Polymer Journal , Volume 84 , 2016 November 1, {Pages 40-53 }

    Abstract

    The polymerization-induced biphasic nature of an emulsion 30/70?wt.% methyl methacrylate (MMA)/butyl acrylate (BA) copolymer was deeply scrutinized with different techniques as the MMA-rich/BA-rich copolymers blend. Its experimentally found upper critical solution temperature (UCST) was then confirmed by the Sanchez-Lacombe lattice fluid (SLLF) and compressible regular solution (CRS) models. Characterization of soft polymer nanocomposites (SPNs) from the aforementioned system as the matrix and different fractions of mono-size poly(styrene-co-acrylonitrile) soft nanoparticles made of 70?wt.% styrene (SAN70) with dynamic mechanical thermal analysis (DMTA), atomic force microscopy (AFM), and rheometry approved their multi-phase character. Homo

    Active layer thickness across the crack plane and fracture energy consumption in polymer nanocomposites: adhesion against tear strength

    S Ghasemirad, N Mohammadi
    Journal PapersRSC Advances , Volume 5 , Issue 130, 2015 January , {Pages 107642-107651 }

    Abstract

    The tear strength of a model methyl methacrylate–butyl acrylate copolymer containing 30 wt% methyl methacrylate (MBC30) and its adhesion strength to poly(ethylene terephthalate) were determined to be 10.2 and 0.26 kN m−1, respectively. The addition of 5 wt% mono-size, 180 nm in diameter, soft nanoparticles of poly(styrene-co-acrylonitrile) with 30 wt% acrylonitrile (SAN70) through latex blending, followed by drying, amplified the adhesion strength while reducing the tear strength. Mild and harsh annealing of the nanocomposite led to partial and full deterioration of work of failure per unit volume (WoF), resulting in augmented adhesion and tear strengths followed by their severe decline, respectively. The G0(1 + ϕ) model-based partitio

    How do soft nanoparticles affect temperature-induced nonlinearity of a UCST copolymer blend?

    Somayeh Ghasemirad, Naser Mohammadi
    Journal PapersColloid and Polymer Science , Volume 293 , Issue 3, 2015 March 1, {Pages 677-686 }

    Abstract

    Temperature-induced nonlinearity of an upper critical solution temperature (UCST) copolymer blend and its nanocomposites containing 5?wt% mono-size soft nanoparticles (SNPs) were investigated. Mechanical and thermal energies contribution into the nonlinearity of UCST copolymer blend was 8.9 ? 103?Jm−3 and 2.2 ? 103?Jmol−1, respectively. Addition of SNP did not change the system thermal-based nonlinearity, while altered its mechanical contribution at constant heating and solicitation conditions. It diminished to 0.4 ? 103?Jm−3 in the nanocomposite containing nano-size dispersion of aged SNPs. Micron-size agglomeration of the fresh SNPs in the nanocomposite; however, enhanced the required mechanical energy for

    Rheomechanical Analysis Of A Model Poly (Methyl Methacrylate-Co-Butyl Acrylate) Pressure Sensitive Adhesive As A Function Of Annealing Time

    S Ghasemirad, N Mohammadi
    Journal Papers , Volume 8 , 2014 January , {Pages }

    Abstract

    A model poly (methyl metacrylate-co-butyl acrylate) pressure sensitive adhesive containing 30 wt% of methyl metacrylate (MBC30) was analyzed rheomechanically as a function of annealing time. The extracted G’and G” curves from dynamic mechanical thermal analysis under applied shear load at frequency of 1 Hz and strain amplitude of 1% represented the behavior of highlyfilled elastomers, Payne effect, probably due to its nanostructuring. The glass transition temperature of butyl acrylate-rich and methyl methacrylate-rich copolymers shifted as much as 50 C and 10 C in comparison to their corresponding results from differential scanning calorimetry,-26 C and 160 C, respectively. Long-term storage of model adhesive film at above its glass tra

    LCST over UCST Phase Behavior of a Nanocomposite Determined by Differential Scanning Calorimetry and Rheomechanical Analysis

    S Ghasemirad, N Mohammadi
    Journal Papers , Volume 11 , 2014 October 6, {Pages }

    Abstract

    Phase behavior of butylacrylate-rich and methyl methacrylate-rich copolymers of an emulsion copolymerized 30/70 methyl methacrylate/butyl acrylate (MBC30) copolymer and its nanocomposite containing 5 wt.% mono-size soft nanoparticles of 70/30 styrene/acrylonitrile copolymer (SAN70) were characterized using time-sweep rheomechanical analysis. The test was conducted at 150 C, the near-critical temperature determined by differential scanning calorimetry, and depicted matrix enhanced storage modulus, G’, followed by a plateau implying criticality. The latex blended and dried nanocomposite, however, represented three orders of magnitude lower G’with a maximum-crossing evolution.

    RHEOLOGICALLY DETERMINED PHASE BEHAVIOR OF AN ALL-POLYMER NANOCOMPOSITE

    ARANI Z KHOUBI, N MOHAMMADI, S GHASEMIRAD
    Journal Papers , Volume 11 , 2014 January , {Pages }

    Abstract

    PHASE SEPARATION OF AN ALL-POLYMER NANOCOMPOSITE CONTAINING POLY (METHYL METHACRYLATE-CO-BUTYL ACRYLATE) WITH 30 WT% METHYL METHACRYLATE (MBC30) AS MATRIX AND 5 WT% OF MONO-SIZE POLY (STYRENE-CO-ACRYLONITRILE) SOFT NANOPARTICLE WITH 70 WT% STYRENE (SAN70) WERE INVESTIGATED. RHEOLOGY WAS USED TO DETERMINE THE BINODAL AND SPINODAL PHASE SEPARATION TEMPERATURES BASED ON INFLECTION POINT OF STORAGE MODULUS AND MEAN FIELD THEORY. THE MEASURED TEMPERATURE AGREES VERY WELL WITH THE DSC RESULTS.

    THE EFFECT OF BUTYL GLYCOL ACETATE/ETHYL ACETATE MIXED SOLVENTS COMPOSITION ON NITROCELLULOSE SOLUTION EMULSIFICATION: THE STABILITY OF RESULTANT

    Halimeh Javidnia, Naser Mohammadi, SHOUSHTARI SA MOUSAVI, Somayeh Ghasemirad, T FARAJPOUR, Mohammad Reza Ghanbari
    Journal Papers , Volume 19 , Issue 5119, 2010 January 1, {Pages 323-332 }

    Abstract

    The effect of butyl glycol acetate (BGA)/ethyl acetate (EA) mixed solvents com-position on nitrocellulose (NC) solution miscibility and rheological properties with or without non-ionic surfactants was investigated. In addition the emulsification of the solution containing two non-ionic surfactants with weight average hydrophilic/lipophilic balance of 14.75 (oil phase), its colloidal stability and microfilterability were studied. The results showed that oil phase viscosity and surface tension increase by high boiling point solvent (BGA) between 50 and 87.5 wt%, which reduced the colloid particle size from 35 μm down to 10 μm. While surfactant free solution viscosity of NC in the BGA/EA mixed solvents increased to a maximum at 75 wt% of BGA

    The Effect of Butyl Glycol Acetate/Ethyl Acetate Mixed Solvents Composition on Nitrocellulose Solution Emulsification: The Stability of Resultant Colloid and Micro-filterability

    H Javidnia, N Mohammadi, SSA Mousavi, S Ghasemirad, T Farajpour, ...
    Journal Papers , , {Pages }

    Abstract

    Rheologically Determined Phase Behavior of an all-Polymer Nanocomposite

    Z Khoubi-Arani, N Mohammadi, S Ghasemirad
    Journal PapersMacromolecules , Volume 41 , 2008 January , {Pages 3276-3283 }

    Abstract

    Phase separation of an all-polymer nanocomposite containing poly (methyl methacrylate-co-butyl acrylate) with 30 wt% methyl methacrylate (MBC30) as matrix and 5 wt% of mono-size poly (styrene-co-acrylonitrile) soft nanoparticle with 70 wt% styrene (SAN70) were investigated. Rheology was used to determine the binodal and spinodal phase separation temperatures based on inflection point of storage modulus and mean field theory. The measured temperature agrees very well with the DSC results.

    /pro/academic_staff/ghasemirad/publication

    دروس نیمسال جاری

    • كارشناسي ارشد
      مباني چسبندگي ( واحد)
      دانشکده مهندسی شیمی، گروه مهندسي پليمر

    دروس نیمسال قبل

    • دكتري
      ترموديناميك محلول هاي پليمري ( واحد)
      دانشکده مهندسی شیمی، گروه مهندسي پليمر
    • كارشناسي ارشد
      شيمي فيزيك پيشرفته پليمرها ( واحد)
    • 1399
      پرواز, امير
      تهيه چسب فشارحساس پاسخ‌ده به مغناطيس با استفاده از نانوذرات هسته/پوسته اكسيد آهن/ اكريليك
    • 1399
      رجبي, افسانه
    • 1400
      پوربخت, كيميا
    • 1400
      اسماعيلي, شادي
    • 1399
      احمدي دهنوئي, علي
      پيش‌بيني وابستگي انرژي پوست‌كني چسب‌هاي فشارحساس به رفتار گرانروكشساني
      داده ای یافت نشد
      داده ای یافت نشد

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