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सीएसआईआर - उत्तर पूर्व विज्ञान एवं प्रौद्योगिकी संस्थान
CSIR-North East Institute of Science and Technology

A Constituent laboratory of Council of Scientific and Industrial Research (CSIR)

Ministry of Science and Technology, Govt. of India
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सीएसआईआर - उत्तर पूर्व विज्ञान एवं प्रौद्योगिकी संस्थान
CSIR-North East Institute of Science and Technology

Bio-Data

Bio-Data

Particulars of organization, functions and duties

Dr Ajit Singh

Dr Ajit Singh

Designation : Scientist E

Education : Ph.D (Polymer Chemistry), CSIR-IICT Hyderabad

ID. No.: 1260

Contact Details: Fax: 0376-2370011

Email id : ajit.chem2006@gmail.com, ajitsingh@neist.res.in

Research Interest

Bio-renewable & biodegradable polymer; Chemicals from natural resources, Lignin chemistry; Coal Chemistry

Projects

  • Feasibility study on the inhibition of pyrite sulfur oxidation in coal and overburden materials for management of acid mine drainage; Ongoing
  • Approach towards tailoring the interfacial structure and property of lignin for flexible bio-polymer film application; Completed

List of Publications

  • Sustainable Biphasic Conversion of Lignin to Vanillin, Using a Metal-Free Catalyst Pathway A. Saikia, K. Dutta, B. Saha, Ajit Singh* ChemistrySelect, 2025, (https://doi.org/10.1002/slct.202500655 )
  • Transforming lignin into polymer film with improved physicochemical properties by modification with itaconic acid and grafting with polycaprolactone K. Dutta, A. Saikia, Ajit Singh* International Journal of Biological Macromolecules, 2025, (https://doi.org/10.1016/j.ijbiomac.2025.141226 )
  • Solvent-free grafting route to develop thin and flexible polymer film from lignin A. Saikia, K. Dutta, Ajit Singh* Polymers for Advanced Technologies, 2024, (https://doi.org/10.1002/pat.6457 )
  • Epoxidation and grafting route to prepare thin and flexible polymer film with high lignin content K. Dutta, A. Saikia, Ajit Singh* Reactive and Functional Polymers, 2023, (https://doi.org/10.1016/j.reactfunctpolym.2023.105720)
  • Metal catalyst‑free selective acetosyringone synthesis from rice straw lignin A. Saikia, K. Dutta, D. Bora, B. Saha, Ajit Singh* Environmental Science and Pollution Research, 2023 (https://doi.org/10.1007/s11356-023-29349-0 )
  • Functionalization and thereafter grafting with lactic acid to synthesize lignin-polylactic acid copolymer for thin film preparation K. Dutta, A. Saikia, B K Saikia, Ajit Singh* Journal of Polymers and the Environment, 2023 (https://doi.org/10.1007/s10924-023-02825-x )
  • Chemical modification of lignin and thereafter grafting with lactic acid for flexible polymer film preparation K. Dutta, Ajit Singh* Journal of Applied Polymer Science, 2022 (https://doi.org/10.1002/app.52320).

Patents/Technologies

  • Process for the production of graphene from sub-bituminous coal B. K. Saikia, A. Hazarika, D. Sarmah, P. Saikia, T Das, A. Thakur, Ajit Singh Patent submitted for India, USA, EU, Russia, China, South Africa, 2024
  • A process for the preparation of polyaniline S. Palaniappan*, Ajit Singh Indian Patent No. 307163, 2019

CSIR-North East Institute of Science & Technology

सीएसआईआर - उत्तर पूर्व विज्ञान एवं प्रौद्योगिकी संस्थान

North East Institute of Science and Technology, Jorhat, Assam, a constituent establishment of Council of Scientific and Industrial Research (CSIR), New Delhi, has been engaged in multidisciplinary R&D work relevant to the country in general and North Eastern Region in particular.

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Last updated date : 8/04/2026