Jenchou John Tseng, PhD

**** ******** **, **** *****, NC 28348;

Tel: 860-***-****,

e-mail:: ad31ow@r.postjobfree.com

LinkedIn: https://www.linkedin.com/in/john-tseng-a3b9aa17a

Summary

Research scientist with extensive experience in the chemical and pharmaceutical industries.

Proven success in the development of analytical methods, leadership, synthesis and characterization of organic chemicals and polymers, customer support, problem solving, and initiation of new research projects, additional strength include instrumentation of chromatography, spectroscopy, thermal analysis, rheology, LIMS, ISO9000, ISO17025, Lean 5S concept, USP, JP. Synthesis and analysis of pharmaceutical products in GMP environment for cost saving and quality improvement in a GLP environment. CHS officer to support EHS department

Spectroscopy

Developed NIR spectroscopy methods for online process analysis, quality improvement, and cost and time saving.

Characterized organic materials and polymers with FT-IR, online NIR, NMR, AA, UV-VIS, GC-MS, LC-MS, and TGA-IR. UV-EB cure technology, UV-online technology, and Developed GPC-IR and GC-MS methods for extractives. Method development, optimization and validation.

Developed XRF spectroscopic methods and colorimetric methods for quality control.

Use electronic microscopy and particle size analysis.al

Developed Chromatographic methods for HPLC, GC, GCMS, and IC for measuring antioxidant, extractable materials, and additive in the formulations.

Developed High Temp. GPC-MALS with viscometer and RI method to characterize the absolute MWD of organic polymers - cellulose, adhesives, and derivatives of terpene resins.

Developed GPC-IR spectroscopy for real-time compositional analysis.

Organic Synthesis

Synthesized pharmaceutical products for process improvement, including Acetaminophen, Ethenzamide, and Aluminum Aspirin, Propanolol hydrochloride, ferrous fumarate and Chlorpheniramine Maleate. Planned and executed the reaction of cellulose carbamate.

Synthesized a series of poly(3-alkythiophenes) and a series of derivatives of Meldrum’s acid.

Physical Properties, Rheology, Thermal analysis, Wet analysis and Colorimetric

Used INSTRON for elongation, creep, shear stress, tensile strength, and peel test.

Utilized rheology for polymer flow behavior, viscoelasticity, Tm, Tg, and Tc.

Project Management & Customer Support

Initiated a project for new or improved products or processes, established a database of molecular weight distribution of resin products for research and marketing.

Lead product measurement team and interfaces with sales, customers, and vendors on a regular basis. Product Development: Designed experiments and performed tests to support R & D, production, and marketing and trouble shooting.

Evaluate raw materials or alternative resources for cost saving and quality control.

Developed more than 50 analytical methods and wrote SOP for ISO 9000 documentation. Trained Lab technicians and chemists with spectroscopy, chromatography, thermal analysis, microscopy, wet analysis, solvent extraction, rheology, and LIMS for data management.

Professional Experience

Consultant: Home Study 2019 – present

Consultant, working at home to take care of my family, attending ACS Webinars, study, Consultant for private companies, Review literature and new technologies of spectroscopy, chromatography, polymers –plastics and rubber, and thermal analysis. Online NIR spectroscopy for cost and time saving

Shurtape Technologies, LLC – Hickory, NC 2013 – 2019

Senior Analytical Chemist: Lab supervisor to establish and manage analytical laboratory in ISO9000 environment. Perform tests of GCMS, FTIR, XRF, UV-VIS, NIR, UV, rheology, HPLC, GPC, TGA, and DSC. Interpret the resulting data to support PD&I and reversed engineering of products. Purchase instrument and maintain Lab inventory. Attend technical meetings, conferences. Evaluate raw materials, antioxidant, additive, and troubleshooting for production. Design automation of analytical device. Review and update analytical methods, instrumentation. Train technicians. CHS officer of PDI facility, conduct the inspection.

Du Pont – Fayetteville Works, NC 2011 – 2013

Principal Investigator: Manage QC Lab to support the polymer production in ISO 9000 environment, train and supervise technicians, maintenance (GC, UV, XRF, NIR, FTIR, Particle size, INSTRON) and monitor the results from four facilities with LIMS and Minitab, update KF equipment and methods, problem solving, and conduct the routine quality management.

Henkel – Rocky Hill, CT 2004 – 2011

Scientist: Perform material testing with spectroscopy, HPLC, UV-Vis, and thermal analysis to support R&D&E in ISO 17025 environments. Developed IR and TGA, TGA-IR, GPC-IR methods for qualitative and quantitative analysis, Design a GPC-IR real time monitor to identify the components of polymer blends with Bio-Red IR and time base software.

Rayonier Advanced Materials – Jesup, GA 1998 – 2004

Senior Scientist: Develop analytical methods and perform analytical tests with GC-MS, GPC, GC, FTIR, SEM, and AA.. Establish baseline information of MWD of cellulosic products. Perform pulping and bleaching technology with DOE to develop new products and process.

Kraton (Arizona Chemical Company), Panama City, FL 1993 - 1997

Analytical Chemist: Develop analytical methods to support QC lab and production. Install and develop on-line NIR spectroscopy for process analysis, purchase XRF, GPC, and thermal analysis, upgrade QC lab, convert packed GC to Capillary GC for better accuracy and saving. Train lab personnel with updated technology. Conduct monthly employee safety meeting.

Arkema, (Elf-Atochem NA, Inc.), King of Prussia, PA 1990 – 1993

Senior Research Chemist: Perform chromatographic tests to support R&D and production, using high temp GPC for MWD of fluoro-polymers, run IC, HPLC, and TLC analysis. Attend the training course on total quality management.

Seven Star Pharmaceutical Company –Taipei, Taiwan 1979 - 1981

Organic Synthesis Chemist: Synthesis and analysis of pharmaceutical products in cGMP environment for cost saving and quality improvement in a GLP research laboratory.

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Education:

Postdoctoral Researcher, University of Texas, Texas (1988 - 1990)

Synthesis and characterization of organic compounds and conducting polymers. Synthesis of 3-cycloalkyl-thiophenes with bromination, nitration, hydrogenation, derivatization, polymerization, reduction, purification and characterization of conducting polymers with NMR, GCMS, TGA, DSC, GPC-MALS, HPLC, online-NIR, UV-VIS.

Ph.D. in Organic and Analytical Chemistry - Auburn University, Alabama (1983 – 1988)

Synthesize a series of Meldrum's acid and cycloalkanone derivatives, studied the mechanisms of carbene chemistry using flash vacuum pyrolysis techniques at extreme conditions.

Reaction of Meldrum’s acid with cycloalkanones, derivatization with deuterium on adducts.

Study the reaction mechanisms of intramolecular reactions of intermediates with spectroscopies.

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