Positions

Research Areas research areas

Overview

  • John Tsavalas is a Polymer Scientist with particular emphasis in polymer colloids (nanoparticles synthesized from polymers). He is an Associate Professor in Chemistry and also a member of the Materials Science Program. He is the Director of the UNH Latex Morphology Industrial Consortium and the Deputy Director of the Center for Advanced Materials & Manufacturing Innovations (CAMMI). For the month of June 2012, he was a Visiting Professor of Polymer Chemistry at Université Claude Bernard Lyon 1, in the LCPP group, invited by Professors Timothy McKenna and Bernadette Charleux. In both 2011 and 2015 he was the organizer of the International Polymer Colloids Group Conference, those two times held on the campus of UNH, and he was most recently the chair of the Polymer Reaction Engineering Conference in May 2018 (as well as the co-chair in 2015). Prior to joining University of New Hampshire, he was a Senior Research Scientist at The Dow Chemical Company where he worked on a wide variety of polymer colloid related R&D with particular emphasis on nanostructured latex particles. Before that, he was a Visiting Scholar in Polymer Chemistry at Eindhoven Technical University in The Netherlands just following his PhD in Chemical Engineering from Georgia Institute of Technology in Atlanta, USA

    Research Interests

    • Control of colloidal morphology in polymeric nanoparticle synthesis (encapsulation, multi-component structured latex, hollow latex, hybrid (alkyd/acrylic, PU/acrylic) latex, etc.)
    • Colloids derived from sustainable starting materials
    • Clustering and assembly of particulate systems
    • Molecular and macromolecular architecture control by living free-radical polymerization
    • Dynamic modeling of colloidal interactions, film formation, & evolution of multi-phase morphology
    • Dynamic modeling of reaction kinetics, macromolecular architecture development, phase separation, and particle morphology development for colloidal synthesis
    • Hydroplasticization of copolymers and impact on diffusion, phase separation, and viscoelastic properties
    • Distribution of water within polymer colloids
  • Publications

    Academic Article

    Year Title
    2018 Dynamic Aggregation of Poly-N-Isopropylacrylamide Characterized Using Second-Order Scattering.Applied Spectroscopy.  72:1341-1348. 2018
    2018 Morphology control in surfactant free polyurethane/acrylic hybrid latices - The special role of hydrogen bondingPolymer Computational and Theoretical Polymer Science.  139:107-122. 2018
    2018 Selective Detection of Lysozyme Biomarker Utilizing Large Area Chemical Vapor Deposition-Grown Graphene-Based Field-Effect Transistor.Frontiers in Bioengineering and Biotechnology.  6:29. 2018
    2017 Water whitening of polymer films: Mechanistic studies and comparisons between water and solvent borne filmsProgress in Organic Coatings.  105:56-66. 2017
    2016 Influence of n-alkyl ester groups on efficiency of crosslinking for methacrylate monomers copolymerized with EGDMA: Experiments and Monte Carlo simulations of reaction kinetics and sol-gel structurePolymer Computational and Theoretical Polymer Science.  96:130-145. 2016
    2016 Hybrid Encapsulation of Photoluminescent Pigments by Emulsion Polymerization and Reactive HeterocoagulationMacromolecular Reaction Engineering.  10:55-62. 2016
    2015 Monte Carlo Simulations of Free Radical Polymerizations with Divinyl Cross-Linker: Pre- and Postgel Simulations of Reaction Kinetics and Molecular StructureMacromolecules Macromolecules.  48:184-197. 2015
    2014 Acrylic-Alkyd Hybrids: Secondary Nucleation, Particle Morphology, and Limiting ConversionsMacromolecular Reaction Engineering.  8:622-638. 2014
    2014 Partitioning of Functional Monomers in Emulsion Polymerization: Distribution of Carboxylic Acid and Hydroxy (Meth)acrylate Monomers between Water and PolymersIndustrial & Engineering Chemistry Research.  53:6600-6612. 2014
    2013 Quantitative measurements of the extent of phase separation during and after polymerization in polymer composites using DSCThermochimica Acta.  568:20-30. 2013
    2013 Design and analysis of the homogeneous and heterogeneous distribution of water confined within colloidal polymer particlesColloid and Polymer Science.  291:143-156. 2013
    2010 Synthesis and Characterization of Paraffin Wax Microcapsules with Acrylic-Based Polymer ShellsIndustrial & Engineering Chemistry Research.  49:12204-12211. 2010
    2010 The Structural Evolution of Composite Latex Particles During Starve-Fed Emulsion Polymerization: Modeling and Experiments for Kinetically Frozen MorphologiesMacromolecular Reaction Engineering.  4:424-431. 2010
    2010 Measuring the glass transition of latex-based polymers in the hydroplasticized state via differential scanning calorimetry.Langmuir.  26:9408-9415. 2010
    2010 Hydroplasticization of polymers: model predictions and application to emulsion polymers.Langmuir.  26:6960-6966. 2010
    2009 Early detection of steel corrosion via "turn-on" fluorescence in smart epoxy coatings.ACS Applied Materials & Interfaces.  1:2618-2623. 2009
    2005 Simulation studies on the origin of the limiting conversion phenomenon in hybrid miniemulsion polymerizationPolymer Computational and Theoretical Polymer Science.  46:993-1001. 2005
    2004 Particle morphology development in hybrid miniemulsion polymerizationJournal of Coatings Technology Research Surface Coatings International Part B: Coatings International JOCCA - Surface Coatings International.  1:53-63. 2004
    2004 The morphology of alkyd/acrylate latexes produced via hybrid miniemulsion polymerization: grafting mechanismsProgress in Colloid and Polymer Science.  124:126-130. 2004
    2003 Grafting mechanisms in hybrid miniemulsion polymerizationJournal of Applied Polymer Science.  87:1825-1836. 2003
    2003 Limiting conversion phenomenon in hybrid miniemulsion polymerizationPolymer - Plastics Technology and Engineering Polymer Process Engineering Polymer Reaction Engineering.  11:277-304. 2003
    2001 Theoretical aspects of particle swelling in living free radical miniemulsion polymerizationMacromolecules Macromolecules.  34:5501-5507. 2001
    2001 Living radical polymerization by reversible addition-fragmentation chain transfer in ionically stabilized miniemulsionsMacromolecules Macromolecules.  34:3938-3946. 2001
    2000 Living radical polymerization in miniemulsion using reversible addition-fragmentation chain transferMacromolecules Macromolecules.  33:9239-9246. 2000
    2000 Water-based crosslinkable coatings via miniemulsion polymerization of acrylic monomers in the presence of unsaturated polyester resinJournal of Applied Polymer Science.  75:916-927. 2000
    1996 A column design for reducing viscous fingering in size exclusion chromatographyBiotechnology Progress.  12:480-487. 1996

    Conference Proceeding

    Year Title
    2018 Mechanistic insights into topological network impact on glass transition temperatureACS National Meeting Book of Abstracts. 2018
    2018 Tutorial on modeling multi-phase polymer particle morphology development: Critical role of diffusionACS National Meeting Book of Abstracts. 2018
    2018 Utilization of DSC for polymer colloid morphology analysisACS National Meeting Book of Abstracts. 2018
    2017 Light scattering study on the interaction of poly(N-isopropylacrylamide) and transition metal dicationsACS National Meeting Book of Abstracts. 2017
    2017 Simulation and optimization of a soft gamma-ray concentrator using thin film multilayer structuresProceedings of SPIE - The International Society for Optical Engineering. 103991A-103991A. 2017
    2016 A concept for a soft gamma-ray concentrator using thin-film multilayer structuresProceedings of SPIE - The International Society for Optical Engineering. 99056L-99056L. 2016
    2016 Deposition of Thin-Film Multilayer Structures for Soft Gamma-Ray ConcentratorSOCIETY OF VACUUM COATERS 59TH ANNUAL TECHNICAL CONFERENCE PROCEEDINGS, 2016. 463-468. 2016
    2015 A soft gamma-ray concentrator using thin-film multilayer structuresProceedings of SPIE - The International Society for Optical Engineering. 96031E-96031E. 2015
    2009 Nanostructure in alkyd/acrylate materials produced via hybrid miniemulsion polymerizationACS National Meeting Book of Abstracts. 2009
    2002 Grafting mechanisms in hybrid miniemulsion polymerization.ACS National Meeting Book of Abstracts. U500-U500. 2002

    Patents And Disclosures

    Year Title
    Emulsion Polymerization of Esters of Itaconic Acid
    Lithographic Imaging and Printing with Printing Members Having Fusible Polymeric Particles
    Microencapsulation of Amines
    Paper Coating Compositions, Coated Papers, and Methods
    Paper Manufacturing Using Agglomerated Hollow Particle Latex
    Polyester-Polyurethane Foam Manufacture
    Polyurethane Foams Made from Hydroxymethyl-Containing Polyester Polyols
    Vegetable Oil Based Polyols and Polyurethanes Made Therefrom
    Water-Borne Polyester Coatings by Miniemulsion Polymerization

    Co-principal Investigator On

  • FlexE Joint Postdoc  awarded by CAMMI 2016 - 2018
  • Teaching Activities

  • Critical and Creative Thinking Taught course 2018
  • Adv Rsrch Exp/Chemistry Taught course 2018
  • Macromolecular Characterizatn Taught course 2018
  • Thesis Taught course 2018
  • Chem Principles for Engineers Taught course 2017
  • Thesis Taught course 2017
  • Thesis Taught course 2017
  • Chem Principles for Engineers Taught course 2016
  • Freshman Seminar Taught course 2016
  • Thesis Taught course 2016
  • Chem Principles for Engineers Taught course 2016
  • Independent Study Taught course 2016
  • Rsrch Exp/Chemistry Taught course 2016
  • Independent Study Taught course 2015
  • Macromolecular Characterizatn Taught course 2015
  • Education And Training

  • B.S. Chemical Engineering, University of Virginia
  • M.S. Chemical Engineering, Georgia Institute of Technology
  • Ph.D. Chemical Engineering, Georgia Institute of Technology
  • Full Name

  • John Tsavalas