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Hire Dr. Sankar G.

India

USD 100 /hr

Polymer Scientist & Consultant – Polyurethanes, Adhesives, and Bio-based Polymers Expert

Profile Summary

Experienced polymer scientist with over 18 years in academic research, industrial product development, and consulting for polyurethanes, epoxy adhesives, blocked isocyanates, and renewable polymers. Specialist in polymer synthesis, reaction kinetics, advanced analytical methods (FTIR, NMR, DSC, TGA), and product scale-up for adhesives, elastomers, and eco-friendly materials. Extensive track record mentoring PhD students, publishing peer-reviewed research, and collaborating with global industry partners to deliver client-tailored polymer solutions and regulatory-compliant processes. Available for scientific consulting, problem-solving, project leadership, technical writing, and training.

Subject Matter Expertise

• ☆ Product Evaluation
• ☆ Reverse Engineering
• ☆ Product Validation
• ☆ Product Compliance
• ☆ Concept Development
• ☆ Packaging Design
• ☆ Hypothesis
• ☆ Feasibility Studies
• ☆ Technology Scouting
• ☆ Gap Analysis
• ☆ Formulation
• ☆ Cosmetic Formulation
• ☆ Cosmetic & Skincare Formulation
• ☆ Personal Care Product Formulation
• ☆ Cosmetic & Personal Care Product Manufacturing
• ☆ Herbal Products
• ☆ Supplements
• ☆ Essential Oils
• ☆ Consumer Products

Services

• Writing
• Research
• Consulting
• Product Development

Writing Technical Writing, Creative Writing, General Proofreading & Editing

Research Technology Scouting, Scientific and Technical Research

Consulting Scientific and Technical Consulting

Product Development Formulation, Manufacturing, Product Compliance , Concept Development

Work Experience

Professor

University of Madras

May 2014 - Present

Assistant Professor

University of Madras

May 2014 - Present

Education

PhD (Department of Polymer Science)

University of Madras

August 2003 - December 2007

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Elavazhagan Gunasekaran, Sankar Govindarajan (2025). Redox-Active Chitosan–Imidazolium Ionic Liquid-MWCNT Nanohybrids on Biofiber-Reinforced Flexible Substrates for Sustainable Sulfite Sensing . ACS Applied Engineering Materials.

Elavazhagan Gunasekaran, Vasam Sumalatha, Sankar Govindarajan (2025). Thermally Switchable Chitosan-Polycarbamate Cross-linked Epoxy Resin Composites with Enhanced Mechanical Strength and UV-A Shielding . Industrial & Engineering Chemistry Research.

Vennila Srinivasan, Sumalatha Vasam, Sankar Govindarajan (2024). Exploring the Conductivity, Solubility, and thermodynamic properties of sulfonated waste styrofoam through experimental and theoretical studies . The Journal of Chemical Thermodynamics.

Karthi Rajendran, Sankar Govindarajan (2024). Enhancing deblocking efficiency and curing reaction of phenol-blocked polymeric methylenediphenyldiisocyanate for advanced epoxy-polyurethane film formulation . Journal of Polymer Research.

Elavazhagan Gunasekaran, Vennila Srinivasan, Sumalatha Vasam, Sankar Govindarajan (2023). Sustainable cashew nutshell oil-blocked diphenylmethane diisocyanates in co-polymerisation with natural rubber . Journal of Rubber Research.

Vennila Srinivasan, Sumalatha Vasam, Sankar Govindarajan (2023). Improved thermal and mechanical properties of water-blown rigid polyurethane foams synthesized with renewable castor oil and toluene diisocyanate-based trifunctional polyols . Cellular Polymers.

Vennila Srinivasan, Vasam Sumalatha, Adhimoorthy Prasannan, Sankar Govindarajan (2022). Utilization of Sulfonated Waste Polystyrene-Based Cobalt Ferrite Magnetic Nanocomposites for Efficient Degradation of Calcon Dye . Polymers.

Vennila Srinivasan, Vasam Sumalatha, Adhimoorthy Prasannan, Sankar Govindarajan (2022). Utilization of Sulfonated Waste Polystyrene-Based Cobalt Ferrite Magnetic Nanocomposites for Efficient Degradation of Calcon Dye . Polymers.

Vennila Srinivasan and Sumalatha Vasam and Sankar Govindarajan(2022). Investigations on the deblocking reactions of blocked polyisocyanates synthesized from solid waste styrofoam by a non-isocyanate approach and its application in the fabrication of epoxy-polyurethane films . Journal of Polymer Research. 29. (4). Springer Science and Business Media {LLC}

Investigations on the deblocking reactions of blocked polyisocyanates synthesized from solid waste styrofoam by a non-isocyanate approach and its application in the fabrication of epoxy-polyurethane films <head> <META HTTP-EQUIV="Refresh" CONTENT="0;URL=/servlet/useragent"> </head> . Journal of Polymer Research.

Karthi Rajendran and Vennila Srinivasan and Sankar Govindarajan(2022). Synthesis and Deblocking Investigations of Phenol Blocked Aliphatic Isocyanates and Their Application in the Development of Epoxy-Polyurethane Films . Asian Journal of Chemistry. 34. (2). p. 361--370. Asian Journal of Chemistry

Karthi Rajendran, Vennila Srinivasan, Sankar Govindarajan (2022). Synthesis and Deblocking Investigations of Phenol Blocked Aliphatic Isocyanates and Their Application in the Development of Epoxy-Polyurethane Films . Asian Journal of Chemistry.

S. Nithya and K. Gunasekaran and G. Sankar(2021). A Study on the Flexural Behaviour of Geopolymer Lightweight Eco-Friendly Concrete Using Coconut Shell as Coarse Aggregate . Advances in Civil Engineering. 2021. p. 1--20. Hindawi Limited

S. Nithya, K. Gunasekaran, G. Sankar, Cristoforo Demartino (2021). A Study on the Flexural Behaviour of Geopolymer Lightweight Eco‐Friendly Concrete Using Coconut Shell as Coarse Aggregate . Advances in Civil Engineering.

Govindarajan Sankar, Ning Yan(2014). Synthesis and Deblocking Studies of Low Temperature Heat-Curable Blocked Polymeric Methylene Diphenyl Diisocyanates . Journal of Macromolecular Science, Part A. 52. (1). p. 47--55. Informa {UK} Limited

Govindarajan Sankar, Ning Yan(2014). Bio-Based Two Component (2 K) Polyurethane Adhesive Derived from Liquefied Infested Lodgepole Pine Barks . Journal of Biobased Materials and Bioenergy. 8. (4). p. 457--464. American Scientific Publishers

Issam A. Mohammed, Govindarajan Sankar(2011). Synthesis, deblocking and cure reaction studies of secondary alcohol-blocked isocyanates . High Performance Polymers. 23. (7). p. 535--541. {SAGE} Publications

A. M. Issam, G. Sankar(2011). Catalysis of secondary alcohol blocked isocyanate-hydroxyl terminated polybutadiene cure reaction . Polymer Science Series B. 53. (1-2). p. 52--56. Pleiades Publishing Ltd

A. M. Issam, G. Sankar(2010). New Nonlinear Polyurethane: Synthesis and Optical Properties . Polymer-Plastics Technology and Engineering. 49. (15). p. 1606--1610. Informa {UK} Limited

Issam Ahmed Mohammed, Govindarajan Sankar, Melati Khairuddean, Abu Bakar Mohamad(2010). Synthesis and Liquid Crystalline Properties of New Diols Containing Azomethine Groups . Molecules. 15. (5). p. 3260--3269. {MDPI} {AG}

Govindarajan Sankar, A. Sultan Nasar(2009). Effect of isocyanate structure on deblocking and cure reaction of N-methylaniline-blocked diisocyanates and polyisocyanates . European Polymer Journal. 45. (3). p. 911--922. Elsevier {BV}

Govindarajan Sankar, A. Sultan Nasar(2008). Catalysis ofN‐Methylaniline‐Blocked Polyisocyanate‐Hydroxyl‐Terminated Polybutadiene Cure Reaction . Journal of Macromolecular Science, Part A. 45. (9). p. 721--726. Informa {UK} Limited

Govindarajan Sankar, A. Sultan Nasar(2008). Cure-reaction kinetics of amine-blocked polyisocyanates with alcohol using hot-stage Fourier transform infrared spectroscopy . Journal of Applied Polymer Science. 109. (2). p. 1168--1176. Wiley

Govindarajan Sankar, A. Sultan Nasar(2007). Amine-blocked polyisocyanates. I. Synthesis of novelN-methylaniline-blocked polyisocyanates and deblocking studies using hot-stage fourier transform infrared spectroscopy . Journal of Polymer Science Part A: Polymer Chemistry. 45. (8). p. 1557--1570. Wiley

PREPRINT

Karthi R, Sankar Govindarajan (2023). Enhancing Deblocking Efficiency and Curing Reaction of Phenol-Blocked Polymeric Methylenediphenyldiisocyanate for Advanced Epoxy-Polyurethane Film Formulation .

PATENT

WO2014025499 A1.