D.K.CHATTOPADHYAY

Dipak K. Chattopadhyay, Ph.D

Chief Technical Officer

Saan Global Limited, Noida
+91 - 9818422874, +91 - 8920655165

dipak_chattopadhyay@yahoo.co.in

dipak.chattopadhyay@gmail.com

Six Sigma Green Belt Certified

Publications in Peer Reviewed Journals (h - Index: 23; Total citations > 5243)

1. Cure, Viscoelastic and Mechanical Properties of Hydroxylated Polyester Melamine High Solids Coatings
Ramanuj Narayan, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Journal of Materials Science 2002, 37(22), 4911 - 4918. [Impact Factor = 3.9, 2024; Citations: 23]

2. Thermal Stability and Dynamic Mechanical Behaviour of Acrylic Resin and Acrylic Melamine Coatings
D.K. Chattopadhyay, D.B.Rohini Kumar, B.Sreedhar, K.V.S.N. Raju.

Journal of Applied Polymer Science 2004, 91, 27 - 35. [Impact Factor = 2.8, 2024; Citations: 22]

3. Thermal Stability of Chemically Crosslinked Moisture-Cured Polyurethane Coatings
D.K. Chattopadhyay, B. Sreedhar, K. V. S. N. Raju
Journal of Applied Polymer Science 2005, 95, 1509 - 1518. [Impact Factor = 2.8, 2024; Citations: 59]

4. Structural Investigation of Polypropylene Glycol (PPG) and Isophorone Diisocyanate (IPDI)-based Polyurethane Prepolymer by 1D and 2D NMR Spectroscopy

A. Prabhakar, D.K.Chattopadhyay, B. Jagadeesh, K.V.S.N. Raju

Journal of Polymer Science: Part - A: Polymer Chemistry 2005, 43, 1196 - 1209. [Impact Factor=3.6, 2024; Citations: 105]

5. Thermal, Mechanical, and Surface Characterization of Starch-Poly(Vinyl Alcohol) Blends and Borax - Crosslinked Films

B. Sreedhar, M.Sairam, D.K. Chattopadhyay, P.A. Syamala Rathnam, D.V. Mohan Rao

Journal of Applied Polymer Science 2005, 96, 1313 - 1322 [Impact Factor = 2.8, 2024; Citations: 128]

6. Preparation and Characterization of Lithium Fluorophosphate Glasses Doped with MoO3

B. Sreedhar, M. Sairam, D.K. Chattopadhyay, K. Kojima

Materials Chemistry and Physics 2005, 92, 492 - 498. [Impact Factor = 4.7, 2024; Citations: 14]

7. Effect of Chain Extender on Phase Mixing and Coating Properties of Polyurethane Ureas
Dipak K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Industrial & Engineering Chemistry Research 2005, 44, 1772 - 1779. [Impact Factor = 4.2, 2022; Citations: 99]

8. Thermal and Mechanical Properties of Epoxy Acrylate/Methacrylates UV Cured Coatings
D.K. Chattopadhyay, Siva Sanker Panda, K. V. S. N. Raju

Progress In Organic Coatings 2005, 54, 10 - 19. [Impact Factor = 7.3, 2024; Citations: 244]

9. Degradation Profiles of Polyester-Urethane (HP-MDI) and Polyester-Melamine (HP-HMMM) Coatings: A Thermal Study
Ramanuj Narayan, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju, N.N. Mallikarjuna, T.M. Aminabhavi
Journal of Applied Polymer Science 2005, 97, 518 - 526. [Impact Factor = 2.8, 2024; Citations: 16]

10. Degradation Profiles of Polyester-Urethane (Hydroxylated Polyester/Diphenylmethane Diisocyanate) and Polyester-Melamine (Hydroxylated Polyester/Hexamethoxymethyl Melamine) Coatings: An Accelerated Weathering Study

Ramanuj Narayan, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju, N.N. Mallikarjuna, T.M. Aminabhavi

Journal of Applied Polymer Science 2005, 97, 1069 - 1081. [Impact Factor = 2.8, 2024; Citations: 17]

11. Properties of Diamine Chain Extended Polyurethane-Urea Coatings
Dipak K. Chattopadhyay, Siva Sankar Panda, K.V.S.N. Raju

Japan Journal of Color Materials 'Shikizai Kyokaishi', 2004, 77(12), 540 - 547. [Citations: 5]

12. The Phase Mixing of Moisture Cured Polyurethane-Urea During Cure
D.K. Chattopadhyay, P.S.R. Prasad, B. Sreedhar, K.V.S.N. Raju

Progress In Organic Coatings 2005, 54, 296 - 304. [Impact Factor = 7.3, 2024; Citations: 51]

13. Synthesis and Characterization of Crosslinked Polyurethane Dispersions Based on Hydroxylated Polyesters
Ramanuj Narayan, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju, N.N. Mallikarjuna, T.M. Aminabhavi

Journal of Applied Polymer Science 2006, 99, 368 - 380. [Impact Factor = 2.8, 2024; Citations: 45]

14. Influence of Varying Hard Segments on the Properties of Chemically Crosslinked Moisture-Cured Polyurethane-Urea
D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Journal of Polymer Science: Part - B: Polymer Physics 2006, 44, 102 - 118. [Impact Factor = 3.6, 2024; Citations: 54]

15. Viscosity Behavior of Hydroxylated and Acetoacetylated Polyesters
Ramanuj Narayan, D.K. Chattopadhyay, K.V.S.N. Raju, N.N. Mallikarjuna, Sheetal S Jawalkar, T.M. Aminabhavi

Journal of Applied Polymer Science 2006, 100, 2422 - 2435. [Impact Factor = 2.8, 2024; Citations: 6]

16. FT-IR and XPS Studies of Polyurethane-Urea-Imide Coatings
A.K. Mishra, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Progress In Organic Coatings 2006, 55, 231 - 243. [Impact Factor = 7.3, 2024; Citations: 339]

17. Thermal and Viscoelastic Properties of Polyurethane-Imide/Clay Hybrid Coatings
D.K. Chattopadhyay, A.K. Mishra, B. Sreedhar, K.V.S.N. Raju

Polymer Degradation and Stability 2006, 91, 1837 - 1849. [Impact Factor = 7.4, 2024; Citations: 94]

18. Thermal and Surface Characterization of Polyurethane-Urea Clay Nanocomposite Coatings
B. Sreedhar, D.K. Chattopadhyay, V. Swapna

Journal of Applied Polymer Science 2006, 100, 2393 - 2401. [Impact Factor = 2.8, 2024; Citations: 23]

19. Thermal and Surface Characterization of Plasticized Starch Polyvinyl Alcohol Blends Crosslinked with Epichlorohydrin

B. Sreedhar, D.K. Chattopadhyay, M. Sri Hari Karunakar, A.R.K. Sastry

Journal of Applied Polymer Science 2006, 101, 25 - 34. [Impact Factor = 2.8, 2024; Citations: 125]

20. Thermal and XPS studies on Polyaniline Salts Prepared by Inverted Emulsion Polymerization
B. Sreedhar, M. Sairam, D.K. Chattopadhyay, Pragnya Paromita Mitra, D.V. Mohan Rao
Journal of Applied Polymer Science 2006, 101, 499 - 508. [Impact Factor = 2.8, 2024; Citations: 83]

21. The Phase Mixing Studies on Moisture Cured Polyurethane-Ureas during Cure
D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Polymer 2006, 47, 3814 - 3825. [Impact Factor = 4.5, 2024; Citations: 80]

22. Thermal and Dynamic Mechanical Characterization of Polyurethane-Urea-Imide Coatings
A.K. Mishra, D.K. Chattopadhyay, B. Sreedhar, K.V.S.N. Raju

Journal of Applied Polymer Science 2006, 102, 3158 - 3167. [Impact Factor = 2.8, 2024; Citations: 49]

23. Structural Engineering of Polyurethane Coatings for High Performance Applications
D.K. Chattopadhyay, K.V.S.N. Raju

Progress In Polymer Science 2007, 32, 352 - 418. [Impact Factor = 26.1, 2024; Citations: 1702]]

24. Synthesis and Characterization of Hyperbranched Polyurethane-Urea Coatings
Kishore K. Jena, D.K. Chattopadhyay, K.V.S.N. Raju

European Polymer Journal 2007, 43, 1825 - 1837. [Impact Factor = 6.3, 2024; Citations: 150]

25. Synthesis and Characterization of Hyperbranched Polyesters and Polyurethane Coatings
Savita Kumari, Aswini K. Mishra, Dipak K. Chattopadhyay, K.V.S.N. Raju

Journal of Polymer Science: Part - A: Polymer Chemistry 2007, 45, 2673 - 2688. [Impact Factor =3.6, 2024; Citations: 42]

26. Structural Investigation of Polypropylene glycol (PPG) and Isophorone Diisocyanate (IPDI) Based Polyurethane Prepolymer by Matrix-assisted Laser Desorption/ionization Time-of-Flight (MALDI-TOF)-Mass Spectrometry
D.K. Chattopadhyay, N. Prasada Raju, M. Vairamani, K.V.S.N. Raju.

Progress In Organic Coatings 2008, 62, 117 - 122. [Impact Factor = 7.3, 2024; Citations: 17]

27. Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resins and Amino-Functional Silane
D. K. Chattopadhyay, Aaron J. Muehlberg, Dean C. Webster
Polymeric Materials: Science and Engineering (PMSE) Preprints 2008, 98, 883 - 884.

28. Thermal Stability and Flame Retardancy of Polyurethanes
D.K. Chattopadhyay, Dean C. Webster
Progress In Polymer Science - 2009, 34, 1068. [Impact Factor = 26.1, 2024; Citations: 1595]

29. Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resins and Amino Functional Silanes
D.K. Chattopadhyay, Aaron J. Muehlberg, Dean C. Webster

Progress In Organic Coatings - 2008, 63, 405 - 415. [Impact Factor = 7.3, 2024; Citations: 32]

30. Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resin, 3-Aminopropyl Trimethoxysilane and Tetraethoxyorthosilicate
D.K. Chattopadhyay, Autumn D. Zakula, Dean C. Webster

Progress In Organic Coatings - 2008, 2 - 3, 128 - 137. [Impact Factor = 7.3, 2024; Citations:63]

31. Hybrid Coatings from Silane-Modified Glycidyl Carbamate Resins and Amine Crosslinkers
D. K. Chattopadhyay, Dean C. Webster

Progress In Organic Coatings - 2009, 66, 73. [Impact Factor = 7.3, 2024; Citations: 36]

32. Thermal Stability of Magnesium-rich Primers based on Glycidyl Carbamate Resins
Neena Ravindran, Dipak K. Chattopadhyay, Dante Battocchi, Dean C. Webster, Gordon Bierwagen

Polymer Degradation and Stability - 2010, 95, 1160. [Impact Factor = 7.4, 2024; Citations: 7]

33. Development of Highly Crystalline Polyurethanes from Hydroxy Terminated Polyester

V. Swapna, K. Sasidhar, Dipak Chattopadhyay, M.L. Kantam, R. Narayan, B. Thirupathi, S.G. Rao
IJSRST, August 2017, Issue 6, P 259 - 266.

Publications in Indian Journals

34. VOC Protocols and High Solid Acrylic Coatings
D.K. Chattopadhyay, R. Narayan and K.V.S.N. Raju
Paintindia 2001, 51(10), 31-42. [Citations: 1]

35. Effect of Hydroxyl Number and Polymerization Techniques on the Properties of Acrylic Melamine Coatings
D.K. Chattopadhyay, D.B. Rohini Kumar and K.V.S.N. Raju
Paintindia 2003, 53(6), 47-56. [Citations: 1]

36. Properties of Acrylic Melamine Coatings based on High Conversion Prepolymer
D.K. Chattopadhyay, B.K. Chakravarti, R. Narayan and K.V.S.N. Raju
Paintindia 2003, Vol. 53(7), 45-56. [Citations: 1]

37. Roof Cooling Materials and Coatings: An Emerging Technology
Siva Sankar Panda, D.K. Chattopadhyay, K.V.S.N. Raju
Paintindia 2004, 54(11), 65-74. [Citations: 0]

38. Cure Behaviour and Performance Evaluation of Segmented Polyurethane-Urea Coatings
D.K. Chattopadhyay, K.V.S.N. Raju
Paintindia 2005, 55(8), 47-56.

Received Indian Paint Association Award (IPA-2004). [Citations: 2]

Book Chapters

39. K.V.S.N. Raju and D.K. Chattopadhyay, 'Polyester Coatings for Corrosion Protection' in 'High Performance Organic Coatings' 2008, page 165 - 200, Editor Prof. A.S. Khanna. Woodhead Publishing Limited, Abington, Cambridge, England.

40. D.K. Chattopadhyay and Dean C. Webster, 'Nanomaterials for Coatings Applications' for 'Encyclopedia of Nanoscience and Nanotechnology' 2nd Edition (New 15 Vol. Set.; Vol. 11-15), Editor Dr. H. S. Nalwa, Americal Scientific Publishers, USA, 2010.

Patents

41. Dean C. Webster and Dipak Chattopadhyay, 'Hybrid Coatings Prepared from Glycidyl Carbamate Resins with Good Adhesion, Thermal Stability and Resistance to Abrasion and Solvent'. PCT Int. Appl. WO 2008150568 (2008).

42. Dean C. Webster and Dipak Chattopadhyay, 'Hybrid Coatings Prepared from Glycidyl Carbamate Resins.' US patent No. 8,097,741 (2012).

Conference Presentations

1. Dipak K. Chattopadhyay, K. V. S. N. Raju, “High Performance Coating Materials for Aerospace Applications” Macro 2004. International Conference on Polymers for Advanced Technologies, December 15-17, Thiruvananthapuram, India.

2. D. K. Chattopadhyay and Dean C. Webster, “Novel Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resin and 3-aminopropyltrimethoxysilane” International Coatings Expo-2007, Oct. 3-5, 2007, Toronto, Canada.

3. D. K. Chattopadhyay, Aaron Muehlberg, Autumn D. Zakula, and Dean C. Webster, “Hybrid Coatings Prepared from Silane Modified Glycidyl Carbamate Resins and Amine Crosslinkers” International Coatings Expo-2007, Oct. 3-5, 2007, Toronto, Canada.

4. Neena Ravindran, Dipak Chattopadhyay, Autumn Zakula, Dante Battocchi, Dean C. Webster, Gordon Bierwagen, “Properties of Magnesium-rich Primers Based on Silane-modified Glycidyl Carbamate Resins” International Coatings Expo-2007, Oct. 3-5, 2007, Toronto, Canada.

5. D. K. Chattopadhyay, Autumn D. Zakula, and Dean C. Webster, “Synthesis and characterization of organic-inorganic hybrid materials from glycidyl carbamate resin, 3-aminopropyl trimethoxy silane and tetraethoxyorthosilicate” Gordon Research Conferences on Composites, Jan. 13-18, 2008 Ventura, CA, USA.

6. Dipak K. Chattopadhyay, Aaron J. Muehlberg, Dean C. Webster, “Organic-Inorganic Hybrid Coatings Prepared from Glycidyl Carbamate Resins and Amino-Functional Silanes” 235th ACS National Meeting, April 6-10, 2008, New Orleans, LA, USA.

7. Dipak Chattopadhyay, Autumn Zakula, Dean C. Webster, “Hybrid Sol-Gel Coatings from Glycidyl Carbamate Functional Resins” 4th Coatings Science International Conference (COSI 2008), June 23-27, 2008, Noordwijk, The Netherlands.

8. Neena Ravindran, Dipak Chattopadhyay, Dante Battocchi, Dean Webster, Gordon Bierwagen, “Thermal Stability of Magnesium-rich Primers Based on Glycidyl Carbamate Resins” FSCT CoatingsTech Conference, April 28-29, 2009, Indianapolis, IN, USA.

9. D.K. Chattopadhyay, K.V.S.N. Raju, Filip Du Prez, “Phase Mixing Characteristics of Moisture Cured Polyurethanes during Cure” Baekeland 2009, Nov. 22-25, 2009, Antalya, Turkey.

10. Filip Du. Prez, D. Fournier, J. Devroede, D. Chattopadhyay, “Click Chemistry as a Tool toward Functionalization of Polyurethane Thermosets” Baekeland 2009, Nov. 22-25, 2009, Antalya, Turkey.

11. Dipak Chattopadhyay, “Formulation and Characterization of Silica Based Hybrid Flexible Polyurethane Foam” PU Tech March 9-11, 2011, Greater Noida, India.

12. Mohit Bindal, Dipak Chattopadhyay, "Synthesis and Characterization of Sol-Gel Based Hybrid Composite Polyurethane Foam" International Conference on Advances in Materials and Materials Processing (ICAMMP 2011), December 9-11, 2011, IIT Kharagpur, India.

13. Mohit Bindal, Dipak Chattopadhyay, "Synthesis and Characterization of Nano-Composite Flexible Polyurethane Foam" International Conference on Advances in Materials and Materials Processing (ICAMMP 2011), December 9-11, 2011, IIT Kharagpur, India.

14. Mohit Bindal, Dipak Chattopadhyay, "Enhancement in Thermo-Mechanical Properties of Bio-Based Flexible Polyurethane Foam" 18th Congress of Metallurgical Professionals Involving Students, Industry and Teachers (COMPOSIT), March 12-13, 2011, IIT Kharagpur, India.

15. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Formulation & Characterization of Permanent White Body Polyurethane (PU) Foam with Isophorone Diisocyanate (IPDI)", Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.

16. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Propylene Carbonate Modified Polyether Amine Based Flexible Polyurethane Foam: Formulation and Characterization", Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.

17. Anshul Singhal, Ankit Vijay, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI and TDI based Viscoelastic Polyurethane Foams", Asian Workshop on Polymer Processing (AWPP 2013), Dec 8-10, 2013, Goa, India.

18. Ankit Vijay, Anshul Singhal, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI based Flexible Polyurethane Foams", Polymer Processing Society Asia/Australia Conference (PPS 2013), Dec 4-7, 2013, Mumbai, India.

19. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Propylene Carbonate and Hydroxypropylamine Modified Flexible Polyurethane Foam: Formulation and Characterization", APA International Conference on Polymers : Vision & Innovations (APA - 2014), Feb 19-21, 2014, New Delhi, India.

20. Himanshu Jain, Anshul Singhal, Ankit Vijay, D.K. Chattopadhyay, "A New Epoch for MDI based Flexible PU Foams: Formulation & Characterization" APA International Conference on Polymers : Vision & Innovations (APA - 2014), Feb 19-21, 2014, New Delhi, India.

21. Anshul Singhal, Ankit Vijay, Himanshu Jain, Roli Punwar, D.K. Chattopadhyay, "Formulation and Characterization of MDI and TDI based Visco-PU Foams" APA International Conference on Polymers : Vision & Innovations (APA - 2014), Feb 19-21, 2014, New Delhi, India.

22. Amit Kumar, D.K. Chattopadhyay, D. Kumar, "Study of Aliphatic Isocyanate Based Non-Yellowing Flexible Polyurethane (PU) Foam" National Conference on Innovation and Development in Chemical Technology (IDCT - 2014), Feb 28 - March 1, 2014, New Delhi, India.

23. Abhijit Borgohain, Dipak Chattopadhyay, Pranav Mehta, Selwyn T Wilfred, SP Chidambaram, " Performance Enhancer: HFC, HCFC and HFO Auxiliary Blowing Agents in Molded Polyurethane Foam Systems", Best Technical Poster Award, Presented in Honeywell Technology Symposium, Delhi TCO 2014, Sept 11-12; and Chicago TCO, Sept 29-Oct 1, 2014.

24. Dipak Chattopadhyay, Selwyn T Wilfred, SP Chidambaram, "Impact of HFC 245fa and Solstice LBA addition to slabstock polyurethane foams", Honeywell Technology Symposium, Delhi TCO 2015, Sept 3-4, 2015.

25. Attended (a) Belgium Polymer Conference 2009, May 14-15, Houffalize, Belgium, (b) PU Tech 2011, March 9-11, Greater Noida, India, (c) Urethane Tech 2012, Sept. 18-20, Shenzhen, China, (d) PU Tech 2014, March 12-14, Greater Noida, India, (e) Honeywell Technology Symposium 2014, May 20-22, Phoenix, Arizona, USA, (f) UTech 2014, June 4-5, Charlotte, North Carolina, USA.

26. Attended International Symposium on Biodegradable Polymers and Packing Materials, Indian Institute of Chemical Technology, Hyderabad, Nov. 17-18, 2001, Organised by Indo-German Nachokoutankt Association (IGNA).

27. Attended (a) PlastIndia 2012, Feb. 1-6, Pragati Maidan, New Delhi, (b) India Composite Summit 2012, Nov. 1-2, 2012, Pragati Maidan, New Delhi, (c) TechnoTex India 2013, Jan. 17-19, Pragati Maidan, New Delhi.

28. Presented Stall at (a) Agra Footwear Conference 2012, Nov. 2-4, Agra, India, (b) India Med Expo 2012, Dec. 7-9, Jaipur, India.

29. Presented webinar on 'Synthesis and Experimentation with Polymeric Resins in Laboratory Scale & Coating on Textile Fabric for Various Application' 16 March 2021. Invitation received from Uttar Pradesh Textile Technology Institute, Kanpur.

Journal Referee (Paper reviewed > 200)

1. Progress in Organic Coatings, 2. European Polymer Journal, 3. Polymers for Advanced Technologies, 4. Carbon, 5. Journal of Applied Polymer Science, 6. Surface and Coatings Technology, 7. Materials Chemistry and Physics, 8. Journal of Polymer Research, 9. Applied Clay Science, 10. Brazilian Journal of Chemical Engineering, 11. International Journal of Biomaterials, 12. Journal of Industrial and Engineering Chemistry, 13. Materials Science, 14. Mediterranean Journal of Chemistry, 15. Arabian Journal of Chemistry , 16. Journal of Building Engineering, 17. Journal of Physics and Chemistry of Solids, 18. International Journal of Biomaterials, 19. International Journal of Polymer Science.

Member

1. American Chemical Society - past member
2. Society for Polymer Science (Dharwad Chapter)

Other Scientific Activity

1. Reviewed proposal on POLYURETHANE from National Research Foundation (NSF/NRF), South Africa.

-- Last update: 1 March 2025 --