Sujay - Department of Polymer and Process Engineering,Indian Institute of Technology Roorkee
S. Chattopadhyaya Head of department
Areas of Interest
  • Membrane (Cation exchange, Anion exchange and Bipolar) synthesis and application in flow cell, Liposomal drug delivery, understanding of core-shell interactions, Micro-encapsulation of Phase Change materials, Core-Shell Interactions, Polymers Degradation and Stability, Stability in Normal and Accelerated conditions (UV, Ultrasound, catalyst, etc.), Chromatography, Extraction of Natural Products
Professional Background
2012-10-237 years 9 months Associate ProfessorI.I.T.Roorkee
2003-01-018 years Assistant PrfoessorDr.B.A.T.U., Lonere
1995-01-018 years LecturerDr.B.A.T.U., Lonere
Multiple Posts
2020-08-10OngoingProfessorI.I.T. Roorkee
2019-10-21OngoingHead, Polymer and Process EngineeringI.I.T. Roorkee
2020-11-23OngoingHead-IN-Charge, Department of Paper TechnologyI.I.T. Roorkee
2016-01-01OngoingMemberDepartment Administrative Committee
2011-04-041 year 6 months 18 daysAssistant ProfessorI.I.T. Roorkee
2015-01-012 years Chief Warden, Malviya BhawanI.I.T.Roorkee, SRE Campus
2013-01-01OngoingIn charge of Polymer Characterization Lab. I.I.T.Roorkee, SRE Campus
2013-01-011 year Chairman, Departmental Academic Program CommitteeI.I.T. Roorkee, SRE Campus
2005-01-016 years Faculty in Charge of Sophisticated Analytical LaboratoryDr.B.A.T.U., Lonere
Honors and Awards
One among top Fifteen Outstanding Teacher AwardI.I.T. Roorkee2020
Best Teacher of UniversityDr. B.A.T.U., Lonere, MS2006
P. S. Narayana Award and Medal for Best Ph.D. Thesis of Mechanical Sciences DivisionI.I.Sc. Bangalore2003
Educational Details
Research FellowDrug delivery via Nano-medicine NTU (Nanyang Technological University), Singapore2010
Ph.D.Chemical Engineering, Polymer Deg. and StabilityI.I.Sc. Bangalore2002
M.Tech.Chemical EngineeringI.I.T. Kanpur1994
B.Tech.Chemical EngineeringCalcutta University 1992
B.Sc.(Honours)ChemistryCalcutta University1988
Sponsored Research Projects
TopicFunding AgencyStart DatePeriod
Green iquor to white liquor conversion using electrodialysisIMPRINT (SERB)2019-01Ongoing
Smart Bipolar Membrane for symultaneous Acid and alkali production and ZLD application UAY-2016 (MHRD-PERMIONICS)2017-01Ongoing
  • IIChE, Life Member
  • ISTE, Life Member
Teaching Engagements
TitleCourse CodeClass NameSemester
Polymerization Reaction EngineeringPEN-202B.Tech. (Polym. Sci. & Eng.)Spring
Chemical Reactor AnalysisCH-505M.Tech.(Chemical Eng.)Spring
Process Design of EquipmentsPEN-303B.Tech. (Polym. Sci. & Eng.)Autumn
Fluid MechanicsPP-201B.Tech.(PEM, PP, PST)Autumn
Mass TransferCHN-212B.Tech. (Polym. Sci. & Eng.)Spring
Mass TransferPP-311B.Tech.(PEM, PP, PST)Spring
Polym. Reaction Eng.PP-454Integ. M.Tech.Autumn
Mass Transfer-IICH-303B.Tech.(Chemical Eng.)Spring
Transport Phenomena in Polymeric SolutionPEN-325B.Tech. (Polymer Sci. & Engg.)Autumn
Heat TransferPP-214B.Tech.(PEM, PP, PST)Autumn
Projects and Thesis Supervised
Title of ProjectNames of Students
Understanding of electrodialytic transport through polar membranesMrs. Anusha Chandra Bhuvanesh E. Priyabrata Mondal
Phase Change MaterialsJagadeeshwara Reddy Vennapusa Jitendra Kumar Singh Prakhar Dixit
Understanding the Ion Transport facilitation during ElectrodialysisTadimeti Jogi Ganesh Dattatreya
Research Scholar Groups
Scholar NameInterest
Mrs. Anusha ChandaSeparation of Organic Acids using Electrodialysis
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Date
Development of Flame Returdant coatingAjay VishwakarmaO2019-01
Phase Change Material based EmulsionsSumit ParvateO2019-01
Synthesis of Ion Exchnage MembranesMiss Priya GoelO2018-01
Inorganic Phase Change MaterialsMr. Prakhar DixitO2017-01
Understanding the Bipolar membrane and Ions Transport MechanismPriyobrata MondalO2017-01
Thermodynamics of Utectic Mixture Jitendra SinghO2017-01
Bipolar MembraneBhuvanesh E.O2016-01
Microencapsulation of Phase Change MaterialsJagadeeswarareddy VennapusaO2016-01
Physicochemical Aspects of Organic Acid Transport in ElectrodialysisMrs. Anusha ChandraO2020-07
Ion Transport and its facilitation in ElectrodialysisTadimety Jogi Ganesh DattateriaO2020-07
Engineering Principles of Extraction of Pharmaceutical Ingredients from PlantsTaralkar Suyog V.O2005-01
Miraculous sustainability of Drug loaded liposome-Why? IIT Roorkee2016-01
Joint discussion on Polar MembranesCSMCRI, Bhabnagar2013-01
Liposomal formulation for Glaucoma drug -intelegent techniqueJamia Millia Islamia University2020-07
Integrated Approach towards management of Solid waste and Liquid Effluents from Paper IndustriesCPPRI2015-01
Courses or Conferences Organised
Conference NameSponsored ByDate
14th International Seminar of Polymer Science and TechnologyChemical Engineering Dept., Tarbiat Modares University, IRAN2020-11
Special Lectures Delivered
Physicochemical Aspects of Ion Transport through Ion-exchange Membrane JNTU Anantapur2018-01
Selective transport of Week Organic Acids from their ternary mixtures using ElectrodialysisCSIR-CSMCRI Bhavnagar, Guujarat2019-01
Switching selectivity of Organic acid transport during Electrodialytic recoveryCHEMCON 20182018-01
National International Collaboration
Nano-medicine Drug Delivery Nanyang Technological University
Understanding Electro-kinetic flow between two Ion-exchange MembranesEdinberg University
Books Authored
  1. Sujay Chattopadhyay, "Vapour Permeation-A Thermodynamic Perspective", Chapter-09, in “Advances in Pervaporation, Vapor Permeation and Membrane Distillation for Industrial Scale Separations”, Edited by Sundergopal Sridhar and Siddhartha Mollik, 2019 Chapter 9 (P:251-281), Scrivener Publishing LLC a strategic partner of John Wiley & Sons.
  2. Sujay Chattopadhyay, Jogi Ganesh Dattatreya Tadimeti, Anusha Chandra and Bhuvanesh E., "Electromembrane Processes and Energy Generation" Chapter-20 in Membrane Technology (Sustaintable Solutions in Water, Health, Energy and Environment Sectors), Edited by Sundergopal Sridhar, 2018 Chapter 22 (P: 417-441) CRC Press, Taylor and Francis Group.
Refereed Journal Papers


  1. S. Parvate, P. Dixit, S. Chattopadhyay, " Superhydrophobic Surfaces: Insights from Theory and Experiments", J. Phys. Chem. B, 124 (2020), 8, 1323-1360 (, (IF 2.93)
  2. A. Chandra, S. Chattopadhyay, “Chain length and acidity of carboxylic acids influencing adsorption/desorption mechanism and kinetics over anion exchange membrane”, Colloids and Surfaces A: Physicochemical and Engineering Aspects 589 (2020)  ( (IF 3.1
  3. J. Singh, J.R. Vennapusa, S. Chattopadhyay, "Protein-polysaccharide based microencapsulated phase change material composites for thermal energy storage", Carbohydrate Polymers, 229 (2020) 115531- ( (IF 6.04)
  4. A. Chandra, Darshak P., S. Chattopadhyay, "COMSOL simulation and experimental validation of promoter geometries facilitating citric acid transport in Electrodialysis", Chemical Engineering Research and Design 142 (2019) 386-411 ( (IF 3.1)
  5. A. Chandra, Bhuvanesh E., S. Chattopadhyay, "Physicochemical interactions of organic acids influencing microstructure and permselectivity of anion exchange membrane", Colloids and Surfaces A: Physicochemical and Engineering Aspects 560 (2019) 260-269 (IF 3.1)
  6. A. Chandra, Bhuvanesh E., P. Mondal, S. Chattopadhyay, "Surface modification of anion exchange membrane using layer-by-layer polyelectrolytes deposition facilitating monovalent organic acid transport" Colloids and Surfaces A: Physicochemical and Engineering Aspects 558 (2018) 579-590 (IF 3.1)
  7. A. Chandra, J.G.D. Tadimeti, Bhuvanesh E., Darshak P., S. Chattopadhyay,"Switching selectivity of carboxylic acids and associated physico-chemical changes with pH during electrodialysis of ternary mixtures", Sep. Pur. Tech. 193 (2018) 327-344 (IF 5.1)
  8. A. Chandra, J.G.D. Tadimeti, S. Chattopadhyay,"Transport hindrances with electrodialytic recovery of citric acid from solution of strong electrolytes", Chin. J. Chem. Eng. 26 (2018), 278-292 (IF 1.9)
  9. J. G. D. Tadimeti, and S. Chattopadhyay, “Uninterrupted swirling flow facilitating ion transport in Electrodialysis” Desalination 392 (2016) 54-62. (IF 6.0)
  10. J. G. D. Tadimeti, and S. Chattopadhyay, “Physico-chemical local equilibrium influencing cation transport in electrodialysis of multi ionic solutions”, Desalination 385 (2016) 93-105. (IF 6.0)
  11. J. G. D. Tadimeti, V. Kurian, A. Chandra and S. Chattopadhyay, “Corrugated membrane surfaces for effective ion transport in Electrodialysis”, J. Membr. Sci. 499 (2016) 418-428. (IF 7.0)
  12. Jogi Ganesh Dattatreya Tadimeti, Shilpi Jain, Sujay Chattopadhyay, and Prashant Kumar Bhattacharya, “Selection of the Best Process Stream to Remove Ca2+ Ion Using Electrodialysis from Sugar Solution” Int. J. of Electrochemistry, 2014, (I.F. 2.2)
  13. S.V. Taralkar, Sujay Chattopadhyay and V.G. Gaikar, “Parametric Optimization and Modeling of Batch Extraction Process for Extraction of Betulinic Acid from Leaves of Vitex Negundo Linn”, Sep. Sci. & Tech. 51(4), (2016) 641-652; (IF 3.35)
  14. Indu Chauhan, Sujay Chattopadhyay, and Paritosh Mohanty," Fabrication of titania nanowires incorporated paper sheets and study of their optical properties", Materials Express 3(4) (2013) 343-349 (IF 1.5)
  15. S.V. Taralkar and Sujay Chattopadhyay, ‘A HPLC Method for Determination of Ursolic Acid and Betulinic Acids from their methanolic extracts of Vitex Negundo Linn’, J of Analytical and Bioanalytical Techniques 3(3), (2012) 1-6 
  16. J.V. Natarajan, M. Ang, A. Darwitan, S. Chattopadhyay, S. S. Venkatraman, T.T. Wong, ‘Nanomedicine for glaucoma: Liposomes provide sustained release of latanoprost in the eye’, International J. of Nanomedicine, 7(2012) 123-131 (IF 4.5)
  17. J. V. Natarajan, Sujay Chattopadhyay, Marcus Ang, Anastasia Darwitan,Selin Foo, Ma Zhen, Magdalene Koo, Tina T. Wong, Subbu S. Venkatraman, ‘Sustained Release of an Anti-Glaucoma Drug: Demonstration of Efficacy of a Liposomal Formulation in the Rabbit Eye’ PloS One V6(9), (2011). Doi:10.1371/journal.pone.0024513.t002 (IF 2.8)
  18. Leonardus K. Widjaja, Kong Jen Fong, Sujay Chattopadhay, Vitali T. Lipik, Sing S. Liow, Marc J.M. Abadie, Subbu S. Venkatraman, Triblock copolymers of e-caprolactone, L-lactide, and trimethylene carbonate: Biodegradability and elastomeric behaviour”, J Biomed Mater Res Part A 99A (2011) 38–46 (IF 3.2)
  19. Vitali T. Lipik, Kong Jen Fong, Sujay Chattopadhay, Leonardus K. Widjaja, Sing S. Liow, Subramanian S. Venkatraman and Marc J.M. Abadie, “Thermoplastic biodegradable elastomers based on e-caprolactone and L-lactide block co-polymers: A new synthetic approach”, Acta Biomaterialia 6 (2010) 4261–4270. (IF 6.3)
  20. Subbu S.Venkatraman, Lwin Lwin Ma, Jayaganesh V. Natarajan, Sujay Chattopadhyay, “Polymer and liposome-based nanoparticles in targeted drug delivery”, Frontiers of Biosciences. S2:810-812 (2010). (IF 3.35)
  21. Gujar J.G., Chattopadhyay S., Wagh S.J., Gaikar, V.G., “Experimental and Modeling studies on Extraction of Catechin hydrate and Epicatechin from Indian green tea leaves”, Canadian J. Chemical Engineering, 88, (2010) 232-240 (IF 1.2)
  22. Taralkar S.V., Chattopadhyay S., Gaikar, V.G.,"Modeling of batch extraction of Ursolic acid from leaves of vitex Nigunda Linn”, International Journal of Contemporary Engineering, Science and Technology”. 
  23. Sujay Chattopadhyay and Girirdhar Madras, “Degradation of Poly(vinyl acetate)  catalyzed by Aluminium Chloride”, Polym. Deg. Stab., 73 (2001), 83-86. (IF 4.0)
  24. Chattopadhyay, S., Sivalingam, G. and Madras, G., “Lipase Specificity for the Hydrolysis of Poly (vinyl Acetate),” Polym. Deg. and Stab., 80, (2003) 477. (IF 4.0)
  25. Sivalingam, G., Chattopadhyay, S., and Madras, G., “Biodegradability of Polyl(e-caprolactone) and Poly(vinyl acetate),” Chem. Eng. Sci., 49(7), (2003) 1821. (IF 3.3)
  26. Sivalingam, G., Chattopadhyay, S., and Madras, G., “Solvent effects on lipase catalyzed bio-degradation of Poly (e-caprolactone),” Polym. Deg. and Stab., 79 (3) (2003) 413. (IF 4.0)
  27. Sujay Chattopadhyay and Giridhar Madras, “Effect of temperature in ultrasonic degradation of Poly(vinyl chloride and Poly(vinyl acetate)”, J. Appl. Poly. Sci., 88, (2003) 2818-2822(2003). (IF 1.9)
  28. Sujay Chattopadhyay and Giridhar Madras, “Influence of catalyst on thermal degradation of Poly(vinyl chloride)”, J. Appl. Polym. Sci., 84 (2002),791-796. (IF 1.9)
  29. Sujay Chattopadhyay and Giridhar Madras, “Thermal degradation kinetics of Poly (Vinyl Chloride –co-Vinyl acetate) copolymers,” Polym. Deg. and Stab. 78 (2002), 519-524 (IF 4.0)
  30. De, P.; Chattopadhyay, S.; Madras, Giridhar and Sathyanarayana, D.N. "Thermal degra-dation Kinetics of polyperoxides in solution," Polym. Deg. and Stab. 76 (2002) 161-170. (IF 4.0)
  31. De, P.; Chattopadhyay, S.; Madras, Giridhar and Sathyanarayana, D.N. "Degradation Kinetics of para-substituted polyperoxides," J. Appl. Poly. Sci.86 (2002) 957-961. (IF 1.9)
  32. De, P.; Chattopadhyay, S.; Madras, Giridhar and Sathyanarayana, D.N. “Kinetics of thermolysis of polyperoxides”, Polym. Deg. and Stab., 76, (2002) 511-514. (IF 3.19)
  33. Chattopadhyay, S. and Madras, Giridhar, “Enzymatic degradation of Poly(vinyl acetate),” J. Appl. Poly. Sci., 89, (2002) 2579-2582. (IF 1.9)
  34. Giridhar Madras and Sujay Chattopadhyay, "Effect of Solvents on the ultrasonic degradation of Poly(vinyl acetate) in solution", Polym. Deg. Stab., 71 (2001), 267-272 (IF 4.0)
  35. Giridhar Madras and Sujay Chattopadhyay, "Effect of Benzoyl Peroxide on the ultrasonic degradation of Poly (vinyl acetate)”, Polym. Deg. Stab., 73 (2001), 33-38. (IF 4.0)
  36. Giridhar Madras and Sujay Chattopadhyay, "Effect of Hydrogen donor on the thermal degradation of Poly(vinyl acetate) in solution", J. Appl. Polym. Sci., 81, (2001), 1996-2001. (IF 1.9).
  37. Giridhar Madras and Sujay Chattopadhyay, "Optimum Temperature for Oxidative Degradation of Poly (vinyl acetate) in solution”, Chem. Eng. Sci., 56 (2001), 56:5085-5089. (IF 3.3)
  38. Madras, Giridhar, Kumar, Sanjay and Chattopadhyay, S. "Continuous Distribution Kinetics for the Ultrasonic Degradation of polymers," Poly. Deg. Stab., 69 (2000), 73-78. (IF 4.0)
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