Expert in Polymer Characterization, Analytical Chemistry, Design of Experiments for Complex Problem Solving
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
|Year: 2001||Degree: PhD||Subject: Chemical Engineering with Polymer Science specialization||Institution: Texas A&M University|
|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.
|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|
|Training / Seminars|
|Provided training courses on rheology, chromatography - light scattering|
|Qualified vendors of raw materials for making polymer based products|