School of Basic Sciences

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School of
Basic Sciences
School of Basic Sciences

Prof. Umaprasana Ojha

Professor
  • Office: 229, SBS
  • uojha@iitbbs.ac.in
  • Department of Chemistry
IRINS Profile
Brief Resume
Google Scholar
Personal Website
Research Interests:
Sustainable materials: Covalent Adaptable Networks, Hydrogels, Nanocatalysis, Soft Electronics, Water Electrolysis, CO2 Utilization

Biosketch

Professor:                  Indian Institute of Technology Bhubaneswar:      2023 onwards

Professor:                  Rajiv Gandhi Institute of Petroleum Technology: 2022-2023

Associate Professor: Rajiv Gandhi Institute of Petroleum Technology: 2013-2022

Asst. Professor:         Rajiv Gandhi Institute of Petroleum Technology: 2010-2013

Post Doctoral Fellow: University of massachusetts:                                  2006-2010

Education

PhD:                             Indian Institute of Technology Bombay:                 2006

M.Sc.:                           Ravenshaw College:                                                     1999

B.Sc.:                            Kendrapara College:                                                      1997

PhD:                             Indian Institute of Technology Bombay:                 2006

M.Sc.:                           Ravenshaw College:                                                     1999

B.Sc.:                            Kendrapara College:                                                      1997

  • Introduction to Polymers
  • Introduction to Petroleum Refining and Gas processing
  • Introduction to Petroleum Engineering
  • Modern Practices in Molecular Spectroscopy
  • Natural Gas Processing
  • Advanced Organic Synthesis
  • Organic & Hydrocarbon Chemistry

PhD Thesis Guided

  • Anuj Kumar (CSIR) (Completed): Employed
  • Ujjwal Rewati Raman (DST) (Completed): Post-Doctoral Fellow at UMass, Medical School, Worcester
  • Suman Debnath (DAE/CSIR) (Completed): Post-Doctoral Fellow at Purdue University
  • Ramesh Narukulla (DST) (Completed): Working as a Lecturer
  • Subhankar Mandal (DST) (Completed): Post Doctoral Fellow at Unv. Colorado, Boulder
  • Niharika Pandey (DST-WOSB): Completed

Under Progress:

  • Chandan Upadhyaya: To Submit thesis
  • Arpan Tewary:            To Submit thesis
  • Shrinkhala Anand: Institute Fellow at RGIPT
  • Santosh Semwal: Institute Fellow at RGIPT
  • Yukti Setia: DST Fellow at RGIPT
  • Pralay Maity: Institute Fellow at RGIPT

M.Tech.

  • Nilesh K. Jha   (Completed): Asst. Professor at PDEU, Gandhinagar
  • Guest Editor for Frontiers in Materials, Materials and Symmetry
  • Editorial Board Member, Review Editor, Frontiers in Chemistry, IF: 5.5
  • • Invited for Early Career Engagement, American Chemical Society
  • Best Teacher award for the academic year 2010-2011 Rajiv Gandhi Institute of Petroleum Technology, Jais
  • Adani award (best teaching assistantship) for the academic session 2001-2002 by Indian Institute Technology Bombay.
  • Junior Research Fellowship (JRF) sponsored by CSIR, India:
  • Qualified JRF-NET (CSIR-UGC: 2000).
  • Qualified GATE with 91.6 percentile (149 rank):
  • R. K. Nanda award on seminar presentation by Ravenshaw University,
Sl No. Title of the project Sanction No. Agency Total Cost

(Rs. Lakh)

 Present Status Role
1 Development of New polymeric materials with potential application  in petroleum Engineering SERB/F/5311/2012-13 DST (SERB) 23.4 Completed (2016) PI
2 Development of New nano-porous materials with potential application in Gas Storage INT/KOREA/P-17 DST (KNRF) 25.0 Completed (2016) Co-PI
3 Studies on three dimensional fracturing under point loading in viscoelastic media for fabrication of functional  mesoporous materials SB/S3/CE/016/2013 DST (SERB) 25.0 Completed (2016) Co-PI
4 Spatial distribution of uranium and associated water quality parameters in five districts of Uttar Pradesh 36(4)/14/82/2014-BRNS DAE (BRNS) 25.2 Completed (2019) PI
5 Development of Nanoparticle reinforced multi network Hydrogels with high swellability and mechanical  strength Using step-growth networking approach SERB/EMR/2016/006464 DST (SERB) 42.2 Completed

(2021)

 PI
6 Development of polymer coated nanoparticle stabilized foams for oilfield applications SB/S3/CE/057/2015 DST (SERB) 42.9 Completed (2019) Co-PI
7 Polyionic liquid based drilling additives for stabilization of Shale reservoirs SB/S3/CE/067/2015 DST (SERB) 43.2 Completed (2019) Co-PI
8a Development of polymeric Superabsorbent materials for mining applications Innocules/2017/Consultancy Innocules 6.0 Completed (2018) PI
8b Development of polymeric Superabsorbent materials for mining applications Innocules/2020/Consultancy Innocules 3.0 Completed  (2021) PI
9 Fabrication of point to use water filter assembly using probe modified hydrogel as filtering agent DST/WOS-B/2017/440-ETD DST (WOSB) 17.0 Completed

 

 Mentor
10 Development of Electrodes and design of a prototype for the Hard/Sea water electrolysis NETRA/RGIPT/H2/LOI/01 NTPC 98.4 Ongoing Co-PI
11 Development of Electrodes & modular Compact Membrane less Electrolyzer set up for sustainable H2 production from sea/tap/ground water DST/TMD-EWO/AHFC-2021/2021/111 DST 267.0 Ongoing Co-PI
12 Scalable Strategies Towards Tough & Functional Hydrogels through

Controlling of the Chain Confonnation and Entanglement followed by Sequential Networking for Soft Electronics

Applications

 SERB/ CRG/2022/002067 SERB 39.9 Ongoing PI
  1. Semwal, S.; Shakir, R.; Karthikeyan, J.; Sinha, A. S. K. Ojha, U. NiFeOOH-Co9S8-Intercalated Nanostructure Arrays for Energy-Efficient H2 Production and Sulfion Oxidation at High Current Density ACS Applied Nano Materials 2023, 6, 20, 18945-18956
  2. Maity, P.; Upadhyaya, C.; Ojha, U. Closed-loop Recyclable & Biodegradable Thioester Based Covalent Adaptable Networks Chem. Commun., 2023,59, 4225-4228. (Invited Article)
  3. Tewary, A.; Mandal, S.; Alam, Z.; Sinha, A. S. K.; Ojha, U. Scalable Green Synthesis of Ni3N Encapsulated NC layered FeOOH Heterostructures: Bifunctional Electrodes for Sustainable Electrocatalytic Sea Water Splitting, ACS Sustain. Chem. Eng 2023, 11, 6556-6566. (Cover page)
  4. Upadhyaya, C.; Ojha, U. Stress Induced Shape Shifting Materials Possessing Autonomous Self Healing and Scratch Resistant Ability, Chem. Asian. J. 2023, 18, e202201082. (Invited Article)
  5. Mandal, S.; Vignesh, A.; Debnath, S.; Ojha, U. Mechanically Robust Anisotropic Hydrogel-Organogel Conjugates for Soft Actuators with Fast Response Time and Diverse Bi-Axial Programmable Folding Ability. Chem. Mater. 2022, 34, 5125-5137.
  6. Narukulla, R.; Ojha, U.; Sharma, T. Facile One Pot Green Synthesis of –NH2 Surface Functionalized Graphene-Polymer Nanocomposite: Subsequent Utilization as Stabilizer in Pickering Emulsions Colloids and Surfaces, A, 2022, 641, 128594.
  7. Debnath, S.; Upadhyay, C.; Ojha, U. Healable, Recyclable and Programmable Shape Memory Organogels Based on Highly Malleable Catalyst-Free Carboxylate Linkages, ACS Appl. Mater. Interface 2022, 14, 7, 9618–9631.
  8. Narukulla, R.; Chaturvedi, K. R.; Ojha, U.; Sharma, T. Carbon Dioxide Capturing Evaluation of Polyacryloyl Hydrazide Solutions via Rheological Analysis for Carbon Utilization Applications, Energy, 2022, 10.1016/j.energy.2021.122929.
  9. Pandey, N.; Chaturvedi, K. R.; Sharma, T.; Ojha, U. A Polymeric Suspension of Amine Functionalized Silica Nanoparticles Derived from Moonj Grass for the Carbon Capture and Storage applications. J. Macromol. Sci., Part A, 2021 DOI: 10.1080/10601325.2021.2013727.
  10. Pandey, N.; Ojha, U. Biobased PDMS Porous Sponge Materials with Programmable Hydrophobicity & Porosity for Efficient Separation of Oil from Water. J. Appl. Polym. Sci., 2021, DOI: 10.1002/app.51823.
  11. Suman Debnath, Saurabh Kr Tiwary, and Umaprasana Ojha Dynamic Carboxylate Linkage Based Reprocessable and Self-Healable Segmented Polyurethane Vitrimers Displaying Creep Resistance Behavior and Triple Shape Memory Ability ACS Appl. Polym. Mater. 2021, 10.1021/acsapm.1c00199.
  12. Subhankar Mandal Srishti Kumari Milan Kumar Umaprasana Ojha Supplementary Networking of Interpenetrating Polymer System (SNIPSy) Strategy to Develop Strong & High Water Content Ionic Hydrogels for Solid Electrolyte Applications, Adv. Funct Mater, 2021, 10.1002/adfm.202100251 (Hot Topic Collection: Flexible Electronics) (Published as inside back cover)
  13. Ramesh Narukulla, Umaprasana Ojha, Tushar Sharma Effect of NaCl concentration on stability of a polymer–Ag nanocomposite based Pickering emulsion: validation via rheological analysis with varying temperature RSC Adv. 2020, 10(36), 21545-21560.
  14. Suman Debnath, Swaraj Kaushal, Subhankar Mandal, Umaprasana Ojha Solvent Processable and Recyclable Covalent Adaptive Organogels Based on Dynamic Transesterification Chemistry: Separation of Toluene from Azeotropic Mixtures, Polym. Chem., 2020, 11(8), 1471-1480. (Invited Article, Published as the back cover).
  15. Suman Debnath, Swaraj Kaushal, Umaprasana Ojha Catalyst Free Partially Bio-Based Polyester Vitrimers ACS Appl. Polym. Mater., 2020, 2(2), 1006-1013. (Listed among the most read articles in Feb 2020)
  16. Subhankar Mandal, Anant Seth, Vikas Yadav, Srishti Kumari, Milan Kumar, Umaprasana Ojha Nanocomposite Grafted Stretchable and Conductive Ionic Hydrogels for Use as Soft Electrode in Wearable Electrocardiogram Monitoring Device ACS Appl. Polym. Mater, 2020, 2(2), 618-625.
  17. Mandal, Subhankar; Pandey, Niharika; Singh, Somendra; Ranjan, Amit; Ojha, Umaprasana Polyacryloyl hydrazide incorporation into ionic hydrogels improves toughness, elasticity, self-healability, adhesive & strain sensing properties Mater. Chem. Frontier 2019, 3(4), 690-701.
  18. Narukulla, Ramesh; Ojha, Umaprasana; Sharma, Tushar Enhancing the stability and redispersibility of o/w Pickering emulsion through polyacryloyl hydrazide-tannic acid synergy Colloids and Surfaces, A: Physicochemical and Engineering Aspects 2019, 568, 204-215.
  19. Beg, Mukarram; Singh, Priyanka; Sharma, Shivanjali; Ojha, Umaprasana Shale inhibition by low-molecular-weight cationic polymer in water-based mud J. Petro. Explor. Production Tech. 2019, 9(3), 1995-2007.
  20. Debnath, Suman; Ujjwal, Rewati Raman; Ojha, Umaprasana Self-Healable and Recyclable Dynamic Covalent Networks Based on Room Temperature Exchangeable Hydrazide Michael Adduct Linkages Macromolecules 2018, 51(23), 9961-9973. (Listed as the most read article in March, 2019)
  21. Beg, Mukarram; Sharma, Shivanjali; Ojha, Umaprasana Effect of cationic copolyelectrolyte additives on drilling fluids for shales J. Petro. Sci. Eng. 2018, 161, 506-514.
  22. Ujjwal, Rewati Raman; Panda, Debashis; Singh, Anand Pratap; Kumar, Anuj; Ojha, Umaprasana; Kishore, Kumar Ionization-Induced Reversible Aggregation of Self-Assembled Polycarbonyl Hydrazide Nanoparticles: A Potential Candidate for Turn-On Base Sensor and pH-Switchable Materials ACS Appl. Nano Mater. 2018, 1(1), 82-93. (Listed among top 5 articles in 2017)
  23. Ujjwal, Rewati Raman; Sona, Chandan; Debnath, Suman; Yadav, Prem Narayan; Ojha, Umaprasana Dye-Labeled Polyacryloyl Hydrazide-Ag Nanoparticle Fluorescent Probe for Ultrasensitive and Selective Detection of Au Ion ACS Omega 2017, 2(8), 4278-4286.
  24. Narukulla, Ramesh; Ojha, Umaprasana; Sharma, Tushar Stable & re-dispersible polyacryloyl hydrazide-Ag nanocomposite Pickering emulsions Soft Matter 2017, 13(36), 6118-6128.
  25. Raman Ujjwal, Rewati; Sharma, Tushar; Sangwai, Jitendra S.; Ojha, Umaprasana Rheological investigation of a random copolymer of polyacrylamide and polyacryloyl hydrazide (PAM-ran-PAH) for oil recovery applications J. Appl. Polym. Sci. 2017, 134(13), n/a.
  26. Baruah, Ranjana; Kumar, Anuj; Ujjwal, Rewati Raman; Kedia, Soumya; Ranjan, Amit; Ojha, Umaprasana Recyclable Thermosets Based on Dynamic Amidation and Aza-Michael Addition Chemistry Macromolecules 2016, 49(20), 7814-7824. (ACS Author Choice Article)
  27. Ujjwal, Rewati Raman; Purohit, Mahaveer Prasad; Patnaik, Satyakam; Ojha, Umaprasana General Reagent Free Route to pH Responsive Polyacryloyl Hydrazide Capped Metal Nanogels for Synergistic Anticancer Therapeutics ACS Appl. Mater. Interface 2015, 7(21), 11497-11507.
  28. 28Anuj Kumar, Sabindra K. Samal, Rupesh Dash and Umaprasana Ojha Polyacryloyl hydrazide based injectable & stimuli responsive hydrogels with tunable properties J. Mater. Chem. B, 2014, 2, 7429-7439.
  29. Kumar, Anuj; Raman, Ujjwal Rewati; Ojha, Umaprasana Polymeric drug carriers through covalent attachment and encapsulation for controlled delivery purposes Int. J. Plastics Tech. (2014), 18(3), 333-336.
  30. Kumar, A.; Ujjwal, R. R.; Mittal, A.; Bansal, A.; Ojha, U. Polyacryloyl Hydrazide: An Efficient, Simple and Cost Effective Precursor to a Range of Functional Materials through Hydrazide Based Click Reactions ACS Appl. Mater. Interface, 2014, 6, 1855-1865.
  31. Kulkarni, P.; Ojha, U.; Faust, R.; and Desai, S. Thermal and Mechanical Properties of Polyisobutylenebased Thermoplastic Polyurethanes J. Appl.Polym. Sci. 2013, 130, 891-897.
  32. Garle, A.; Kong, S.; Ojha, U.; Budhlall, B. Thermoresponsive Semicrystalline Poly(ε-caprolactone) Networks: Exploiting Cross-linking with Cinnamoyl Moieties to Design Polymers with Tunable Shape Memory. ACS Appl. Mater. Interface, 2012, 4, 645-657.
  33. Cozzens, D.; Luk, A.; Ojha, U.; Ruths, M.; Faust, R. Surface Characterization and Protein Interactions of Segmented Polyisobutylene-Based Thermoplastic Polyurethanes, Langmuir, 2011, 27, 14160-14168.
  34. Tripathy, R.; Ojha, U.; Faust, R. Polyisobutylene modified bisphenol A diglycidylether based flexible and transparent epoxy resins possessing improved mechanical properties, Macromolecules, 2011, 44, 6800-6809.
  35. Ojha, U.; Kulkarni, P.; Cozzens, D.; Faust, R. Hydrolytic degradation studies of Polyisobutylene and Poly(L-lactide) based multiblock copolymers. J Polym Sci Part A: Polym Chem. 2010, 48, 3767-3674.
  36. Cozzens, David; Ojha, Umaprasana; Kulkarni, Pallavi; Faust, Rudolf; Desai, Shrojalkumar In vitro biostability of segmented polyisobutylene-based thermoplastic polyurethanes Transactions of the Annual Meeting of the Society for Biomaterials 2010, 32 (1), 82-83.
  37. Cozzes, D.; Ojha, U.; Kulkarni, P.; Faust, R. Long term in vitro biostability of segmented polyisobutylene-based thermoplastic polyurethanes. J Biomed mater Res Part A 2010, 95A, 774-782.
  38. Ojha, U.; Faust, R. “Synthesis and characterization of biostable thermoplastic polyurethaneurea elastomers based on polyisobutylene macrodiamines” J. Macromol. Sci. Part A. Pure Appl. Chem. 2010, 47, 186-191.
  39. Anandakathir, R.; Ojha, U.; Ada, E. T.; Faust, R.; Kumar, J. “Stilbene-based fluorescent sensor for detection of organophosphorus warfare nerve agents” J. Macromol. Sci. Part A. Pure Appl. Chem. 2009, 46, 1217-1222.
  40. Ojha, U.; Kulkarni, P.; Faust, R. “Synthesis and characterization of novel biostable thermoplastic polyurethane elastomers based on polyisobutylene macrodiols” Polymer 2009, 50, 3448-3457.
  41. Tripathy, R.; Ojha, U.; Faust, R. “Syntheses and characterization of polyisobutylene based macromonomers with methacrylate, glycidyl-ether, acrylate or vinyl-ether end-functionality” Macromolecules 2009, 42, 3958-3964.
  42. Ojha, U.; Kulkarni, P.; Faust, R. “Syntheses and characterization of novel multiblock copolymers consisting of polyisobutylene and poly(L-lactide) segments” J. Polym. Sci. Part A: Polym Chem. 2009, 47, 3490-3505.
  43. Ojha, U.; Feng, D.; Chandekar, A.; Whitten, J. E.; Faust, R. “Peptide surface modification of p(hydroxyethyl methacrylate-co-methyl methacrylate)-b-isobutylene-b-p(hydroxyethyl methacrylate-co-methyl methacrylate) block copolymers” Langmuir 2009, 25, 6319-6327.
  44. Ojha, U., Rajkhowa, R.; Rao, S. A.; Faust, R. “A novel approach to synthesis of different end-functionalized polyisobutylenes using nucleophilic substitution reactions” Macromolecules 2008, 41, 3832-3841.
  45. Ojha, U., P.; Kumar, A. “Design, synthesis and characterization of main chain aromatic polyesters based on 3,4-ethylenedioxythiophene” J. Polym. Sci. Part A: Polym Chem. 2006, 44, 3479-3486.
  46. Ojha, U., P.; Ramesh, C.; Kumar, A. “Design, synthesis and characterization of polyureas based on 3,4-ethylenedioxythiophene” J. Polym. Sci. Part A: Polym. Chem. 2005, 43, 5823-5830.
  47. Ojha, U., P.; Krishnamoorthy, K.; Kumar. A. “Synthesis and characterization of polyoxadiazoles based on 3,4-alkylenedioxythiophene” Synth. Met. 2003, 132, 279-283.
  48. Jha, N.; Kumar, A.; Mathur, A.; and Ojha, U. Analysis of CO2 Swelling and Modeling of PVT Properties of Reservoir fluid of Cambay Basin 2014.
  49. Cozzens, D.; Ojha, U.; Ruths, M.; Faust, R. Biocompatibility of novel polyisobutylene-based thermoplastic polyurethanes Polym. Preprints 2010, 51, 626-627.
  50. Synthesis and biostability of novel polyisobutylene-based thermoplastic polyurethanes Cozzens, D.; Ojha, U.; Kulkarni, P.; Faust, R.; Desai, S. Polymer Preprints 2010, 51(2), 31-32.
  51. Kulkarni, P.; Ojha, U.; Cozzens, D.; Faust, R. Hydrolytic degradation of polyisobutylene and poly-lactide based multiblock copolymers Polym. Preprints 2010, 51, 5-6.
  52. Cozzens, David; Ojha, Umaprasana; Kulkarni, Pallavi; Faust, Rudolf; Desai, Shrojalkumar In vitro biostability of segmented polyisobutylene-based thermoplastic polyurethanes. Transactions of the Annual Meeting of the Society for Biomaterials (2010), 32, 82-83.
  53. Tripathy, R.; Ojha, U.; Faust, R. Syntheses and characterization of polyisobutylene based macromonomers with methacrylate, glycidyl-ether, acrylate or vinyl-ether end-functionality. Polym. Preprints 2009 (In Press).
  54. Garle, A.; Ojha, U.; Budhlall, B. Combination of ROP and RAFT synthesis of a novel biodegradable, stimuli responsive poly[caprolactone-ran-cinnamoyl modified caprolactone]-b-PNIPAm-b-poly[caprolactone-ran-cinnamoyl modified caprolactone] triblock copolymer. PMSE Preprints 2009,101, 1221-1222.
  55. Ojha, U.; Faust, R. Synthesis, characterization and properties of biostable thermoplastic polyurethanes based on polyisobutylene and poly(tetramethylene oxide) segments. PMSE Preprints 2009, 101, 1228-1229.
  56. Ojha, U.; Kulkarni, P.; Faust, R. Design and synthesis of biodegradable multiblock copolymers based on polyisobutylene and poly-L-lactide segments. PMSE Preprints 2009. 101, 1200-1201.
  57. Ojha, U.; Feng, D.; Chandekar, A.; Whitten, J. E.; Faust, R. Peptide surface modification of poly(hydroxyethyl methacrylate-co-methyl methacrylate)-b-isobutylene-b-poly(hydroxyethyl methacrylate-co-methyl methacrylate) block copolymers to enhance endothelialization. PMSE Preprints 2007, 97, 28-30.
  58. Higashihara, T.; Ojha, U.; Faust, R.; Strickler, F. Grafting of poly(dimethylsiloxane) onto poly(styrene-block-isobutylene-block-styrene). Polym. Preprints 2007, 48, 1037-1038.
  59. Ojha, U.; Faust, R. Synthesis and characterization of end-functionalized polyisobutylenes for Sharpless-type click reactions. Polym. Preprints 2007, 48, 786-787.
  60. Kumar, A.; Contractor, A. Q.; Ambade, A. V.; Ranganathan, T.; Krishnamoorthy, K.; Mishra, S. P.; Ojha, U. P.; Santra, S.; Kanungo, M. Novel approaches for novel materials Int. J. Plast. Technol. 2003, 6, 73-76.
  61. Catalysis for Clean Energy and Environmental Sustainability, Chapter: Evolution of Ziegler-Natta Catalysts for Polymerization of Olefins, Authors: A. S. K. Sinha & U. Ojha, Publisher: Springer Nature Switzerland AG, Publication Year: 2021
  62. Electrocatalysis, Chapter: Recent Trends in Development of Metal Nitride Nanocatalysts for Water Electrolysis Application, Authors: A. S. K. Sinha & U. Ojha, Publisher: Intech Open, Publication Year: 2021
  63. Natural Gas – New Perspectives and Future Developments, Chapter: Adsorbed Natural Gas for Vehicular Applications, Authors: A. S. K. Sinha & U. Ojha, M. S. Balathanigaimani, S. Kar, 2022, In Press
  64. Natural Gas – New Perspectives and Future Developments, Chapter: Role of Natural Gas in India: Recent developments and future perspectives, Authors: A. S. K. Sinha S. Kar, U. Ojha, & M. S. Balathanigaimani, 2022
  65. Sinha, A. S. K., Ojha, Umaprasana, Tewary, Arpan and coworkers Metal nitride based nanocatalyst with protective conductive cn-coating modified bi-functional electrodes Indian Pat. Appl. 2022, 202111058961
  66. Ojha, Umaprasana; Kumar, Anuj Stiff plastic material possessing autonomous self healing ability Indian Pat. Appl. (2017), IN 2015DE03230 A 20170414.
  67. Ojha, Umaprasana; Kumar, Anuj Polyacryloyl hydrazide based hydrogels Indian Pat. Appl. (2016), IN 2015DE00819 A 20160930.
  68. Ojha, Umaprasana; Ujjwal, Rewati Raman; Kumar, Anuj A process for the preparation of polyacryloyl hydrazide stabilized metal nanoparticles Pat Int. Appl. WO2016128988A1/ Ind Pat. Appl. 367/DEL/2015
  69. Faust, Rudolf; Ojha, Umaprasana Polyisobutylene based polyurethanes US Pat. Appl. Publ. 2013, 20130079487.
  70. Faust, Rudolf; Tripathy, Ranjan; Ojha, Umaprasana Functional polyisobutylene based macromonomers and methods for making the same PCT. Int. Appl. 2010, WO 2010111280 A1 20100930
  71. Faust, Rudolf; Ojha, Umaprasana Polyisobutylene based polyurethanes and the method for making and using them. PCT. Int. Appl. 2010, WO 2010081132 A1 20100715
  72. Boden, Mark; Schwarz, Marlene C.; Strickler, Fred H.; Faust, Rudolf; Ojha, U.; Higashihara, Tomoya Copolymers having polyisobutylene and biodegradable polymer segments U.S. Pat. Appl. Publ. 2010, US 2010166820 A1 20100701.
  73. Schwarz, Merlene; Faust, Rudolf; Ojha, Umaprasana; Boden, Mark; Strickler, Fred Modified polymers and methods for making and using the same PCT Int. Appl. 2009, WO 2009006538.
  74. Faust, Rudolf; Ojha, Umaprasana Functional hydrocarbon polymers and process for producing same PCT Int. Appl. 2008, WO 2008060333.
  75. Kumar, Anil; Santra, Santimukul; Ojha, Umaprasana; Sreelekha, P. G.; Jasmine N-alkylation of amino acids and its applications in polymer syntheses. Indian Pat. Appl. 2008, 2006MU00775
  76. Kumar, Anil; Santra, Santimukul; Ojha, Umaprasana; Sreelekha, P. G.; Jasmine Malonic acid based monomers and polymers. Indian Pat. Appl. 2007, 2006MU00664

Professor:                  Indian Institute of Technology Bhubaneswar:      2023 onwards

Professor:                  Rajiv Gandhi Institute of Petroleum Technology: 2022-2023

Associate Professor: Rajiv Gandhi Institute of Petroleum Technology: 2013-2022

Asst. Professor:         Rajiv Gandhi Institute of Petroleum Technology: 2010-2013

Post Doctoral Fellow: University of massachusetts:                                  2006-2010

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