Expert Details

Expert in Polymer Characterization, Analytical Chemistry, Design of Experiments for Complex Problem Solving

Expert ID: 731802 Delaware, USA

Request Expert

Expert performed polymer characterization using a wide variety of analytical techniques: Size Exclusion Chromatography (SEC/ GPC), Field Flow Fractionation, HPLC, Dilute Solution Viscometry, Rheology, Thermal-Mechanical Analysis (DSC, TMA, DMA), Light Scattering, Optics (Birefringence, Dichroism, Turbidity). He developed structure-property-performance relationships in polymer materials, melts, solutions, blends, gels, and emulsions. He has also in-depth knowledge of hydrodynamics of simple and complex fluids.

Used a wide variety of techniques to understand structure-property-performance relationships for research, competitive and commercial products: Mechanical analyses (DMA, tensile), Rheology, Viscometry, Capillary Rheometry, Thermal analyses (TGA, TMA, DSC), Chromatography (GPC-Light Scattering-Viscometry, HPLC, IC), Zeta Potential Measurement (EKA, Zetasizer, Acoustic measurements), Particle Size Distribution (Zetasizer, CPS, Accusizer, Lumisizer, Mastersizer), Porosimetry.

Expert may consult nationally and internationally, and is also local to the following cities: Philadelphia, Pennsylvania - Allentown, Pennsylvania - Reading, Pennsylvania - Bethlehem, Pennsylvania - Lancaster, Pennsylvania - Trenton, New Jersey - Camden, New Jersey - Wilmington, Delaware - Baltimore, Maryland - Alexandria, Virginia

Request Expert

Education

Year Degree Subject Institution
Year: 2001 Degree: PhD Subject: Chemical Engineering with Polymer Science specialization Institution: Texas A&M University

Work History

Years Employer Title Department Responsibilities
Years: 2008 to Present Employer: Undisclosed Title: Analytical Manager Department: Electronic Materials Responsibilities: (1) He is leading Analytical Technology group and provide support to R&D and external customers
(2) He is responsible for scouting new analytical technologies to measure performance properties of polymer based solid & liquid materials.
(3) Responsible for problem solving related to product performance (i.e. contamination identification), manufacturing upset, customer issue resolution.
(4) Design and execution of experiments for complex problem solving.
(5) Responsible for leveraging external labs and a wide variety of techniques: Mechanical analyses (DMA, tensile), Rheology, Viscometry, Capillary Rheometry, Thermal analyses (TGA, TMA, DSC), Chromatography (GPC-Light Scattering-Viscometry, HPLC, IC), Zeta Potential Measurement (EKA, Zetasizer, Acoustic measurements), Particle Size Distribution (Zetasizer, CPS, Accusizer, Lumisizer, Mastersizer), Porosimetry, Spectroscopy (FTIR, NIR), Microscopy (SEM) etc.
Years: 2004 to 2008 Employer: Cytec industries Title: Sr. Research Chemist Department: Research & Development Responsibilities: (1) Performed characterization of co-polymer based research, commercial and competitor products for mining, water treating, coatings, polymer additives and pressure sensitive adhesive applications using triple-detection size exclusion chromatography (SEC/GPC), HPLC, field flow fractionation, dilute solution viscometry, rheology, dynamic light scattering and relevant techniques.
(2) Developed methods involving polymer characterization to support global R&D, manufacturing, QC and to meet regulatory compliance.
(3) Worked on projects designed based on six sigma methodology and applying the concepts for analytical method development.
(4) Supported new product development efforts by working as part of interdisciplinary teams.
Years: 2001 to Present Employer: Undisclosed Title: Analytical Chemist Department: Michigan Nanotechnology Center Responsibilities: (1) Developed a method to quantify degradation and scission of high molecular weight polymer chains in shear and extensional flows using chromatography (SEC), multi-angle laser light scattering (MALLS), birefringence, and viscometry.
(2) Studied solubility, aggregation, and miscibility of polymers during high molecular weight polymer induced turbulent drag reduction.
(3) Performed aqueous size exclusion (SEC) and high performance liquid (RP-HPLC) chromatographic analyses for controlling quality of raw materials, intermediate and final products during syntheses of different generations of dendrimers (hyperbranched polymers) and dendrimer-drug conjugates.
(4) Developed LC methods for detection and separation of various surface functionalized (cationic, anionic, neutral) dendrimers.
(5) Investigated polymer-surfactant and polymer-neutralizer interactions in topical gels using IR and Raman spectroscopy, Rheometry, DSC and pH measurements
Years: 1997 to 2001 Employer: Texas A&M University Title: Research Assistant Department: Chemical Engineering Responsibilities: (1) Performed thermal-rheological characterization of polystyrene and model branched polybutadiene solutions and melts using mechanical rheometry, DSC and DMA.
(2) Developed a novel phase modulated optical (birefringence) apparatus to measure flow-induced changes in conformation, orientation and stretching of polymer chains.
(3) Characterized polymers using multiple analytical methods: DSC, TMA, DMA, GPC, Rheometry, Viscometry, and Polarized Microscopy.
(4) Established a fully integrated computer controlled data acquisition and translation system using LabView.

Career Accomplishments

Associations / Societies
American Chemical Society, Society of Rheology, Society of Plastics Engineers, American Institute of Chemical Engineers
Licenses / Certifications
Certified Six Sigma Green Belt
Publications and Patents Summary
Has more than 25 publications

Additional Experience

Training / Seminars
Provided training courses on rheology, chromatography - light scattering
Vendor Selection
Qualified vendors of raw materials for making polymer based products

Fields of Expertise

polymer characterization, polymer material analysis, polymer mechanical property, polymer physical chemistry, polymer property, polymer thermal analysis, tensile strain, tensile strength, tensile strength instrumentation, tensile strength measurement, tensile testing, thermogravimetric analysis, thermomechanical analysis, toughness, ultimate tensile strength, birefringence, particle-size analysis, dispersion rheology, gel rheological measurement, melt rheology, non-Newtonian fluid rheology, polymer rheology, rheological measurement, rheology, viscometry, viscosity measurement, multi-axial rheological system, gas rheological measurement, gel permeation chromatography, high-performance liquid chromatography, high-performance liquid chromatography detector, chromatography applications, size-exclusion chromatography, colloid characterization, strain sensor, creep testing, compression testing, aqueous polyurethane dispersion, gas chromatography/mass spectrometry, reverse-phase chromatography, activation analysis, extensional viscosity, high-performance liquid chromatography troubleshooting, glassy polymer, strain analysis, hazardous chemical analysis, chemical characterization, material characterization process, materials testing, particle-size distribution determination, density measurement, mechanical strain, non-Newtonian fluid, non-Newtonian fluid flow, turbidimetric analysis, thermal analysis, soluble polymer, polyurethane, polymer, gravimetric analysis, fluid mechanics, fluid flow measurement, chromatography

Request Expert

Dev Tool:

Request: expert/polymer-characterization-analytical-chemistry-design-of-experiments-for-complex-problem-solving
Matched Rewrite Rule: expert/([^/]+)(?:/([0-9]+))?/?$
Matched Rewrite Query: experts=polymer-characterization-analytical-chemistry-design-of-experiments-for-complex-problem-solving&page=
Loaded Template: single-experts.php