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Praveen C. Ramamurthy

Research Area

Patents

  • Praveen C Ramamurthy, Ashwini N Mallya “Conducting polymer resistive based sensor for detection of nitrate ion in water” 2015.
  • Kashyep M, Vinayak Kumar, Praveen C Ramamurthy, Monto Mani, Amaresh Chakrabarti, “Portable Solar-powered Water Purifier-cum-Tester” IPA11140001 2014 (under review).
  • Praveen C Ramamurthy, Satyajit Gupta, Sindhu Srethamraju, Srinivas Raghavan, Giridhar Madras, “Poymer/Graphene Based Bilayered Architecture As A Gas Barrier material”, 154 2012 (Under Review).
  • Usha, B. Ramachandra, M. S. Dharmaprakash, Kaushal Mehta, Praveen C. Ramamurthy “Smart sensor based on conducting polymers (PANI) and nano particulates for biological real time Applications” 2012. 2859/CHE/2012.
  • Praveen C Ramamurthy, Satyajit Gupta, Giridhar Madras Development of ‘Ultra Low Moisture Permeability Measurement Technique’ using Cavity Ring Down Spectroscopy 2012 IPEC 137/2012 1651/CHE/2012.
  • Praveen C Ramamurthy, U.S. Patent in review “Thermoplastic Sensor for Flammable gases” 2007.
  • Praveen C Ramamurthy, U.S. Patent in review “Nanocomposite Interpenetrating Polymer Network (N-IPN) Multiple Gas Sensor for Both Low and High Solubility Parameter Flammable Gases” 2007.
  • Praveen C Ramamurthy, U.S. Patent in review “Thermoplastic Propane Sensors” 2007.
  • Praveen C Ramamurthy, U.S. Patent in review “Flammable Vapor Micro-Electro-Mechanical Systems (MEMS) Chemical Actuators” 2007.
  • Praveen C Ramamurthy, U.S. Patent “Single Use Flammable Vapor Sensor Films” US patent # US20090130421 (A1) 2009.
  • Praveen C Ramamurthy, U.S. Patent “Vapor Sensor Materials Having Polymer-Grafted Conductive Particles” US patent # US2008025876 (A1) 2008.
  • Praveen C Ramamurthy, Blasé Amadio, U.S. Patent “Robust Low Resistance Vapor Sensor Materials” US patent # US2008017507 (A1) 2008.
  • Prasad Khadkikar, Praveen C Ramamurthy and Bernd Zimmermann, U.S. Patent “Capacitive Vapor Sensor”, US patent # US7421883, US 2007/0131021 (A1) 2007.
  • Ed Blok, Praveen C Ramamurthy, Jared Starling and Blase Amadio, U.S. Patent “Vapor Sensor and Materials Thereof” US patent # US20060292033 (A1) {US7645422 (B2)} 2006, European patent # EP1895293 (A2) 2008 and (A3) 2009, Japanese patent # JP2008051795, Mexican patent # MX2007004752 (A), Chinese patent # CN101135660 (A), Canadian patent # CA2583632 (A1), Australian patent # AU2007201456 (A1).
  • Jeffery A. West, Praveen C Ramamurthy, U.S. Patent “Methods of Minimizing Temperature Cross-Sensitivity In Vapor Sensors and Compositions Thereof” US patent # US 2007/0095678 (A1), 2007.

Conference and Seminars

  • Khadija Kanwal Khanum and Praveen C. Ramamurthy “Electrospun assisted solar-fiber devices and its characterization” at ICMAT 2015 & IUMRS-ICA 2015 Suntec Singapore, Singapore, 28 June- 3 July 2015.
  • Khadija Kanwal Khanum and Praveen C. Ramamurthy “Light management studies in organic photoactive materials and its simulation” at ICMAT 2015 & IUMRS-ICA 2015 Suntec Singapore, Singapore, 28 June- 3 July 2015.
  • Arun D Rao, M G Murali, Stefan D Oosterhout, Alexander G. Dixon, Kopidakis Nikos, Dana Olson, Praveen C Ramamurthy “Effects of low band gap polymer on the charge extraction in P3HT: PCBM based ternary Bulk Heterojunction Solar Cells” Next-Generation organic Photovoltaics II Oosterpoort, Groningen NL 1 June 28-July 2015.
  • Swathi S K, Praveen C. Ramamurthy” Organic, Hybrid and Perovskites materials and devices” 42nd iEEE photovoltaic specialists conference new Orleans, LA June 14-19, 2015.
  • Sindhu Seethamraju, Praveen C.Ramamurthy and Giridhar Madras “Development of ultra-low water vapor permeable Nafion based barrier material” PolyChar23 University of Nebraska-Lincoln Nebraska, U.S.A May 11-15, 2015.
  • Khadija Kanwal Khanum, Akshay Gowda K. M and Praveen C. Ramamurthy “Effect of Solvent and Electrospinning Needle Geometry on the Nanofibers Morphology and its Application” at Advancements in Polymeric Materials (APM 2015), Indian Institute of Science (IISc), Bangalore, February 20-22, 2015.
  • A.K. Jagdish, P.C. Ramamurthy, D. Roy Mahapatra, and G.M. Hegde “Understanding Degradation Phenomena in Organic Photovoltaic Devices” XVII, part of SPIE OPTO (submitted in SPIE Conference Programs & Proceedings) 10th February 2015.
  • Khadija Khanum, Praveen C. Ramamurthy” “Fabrication of solar-fiber devices through electro spinning” Electronic Materials and Applications in Doubletree by Hilton Orlando at Sea World Orlando, Florida USA from January 20 — 22, 2015.
  • Khadija Kanwal Khanum, Vinila N V, Praveen C. Ramamurthy “Various polymer nanostructures through electrospinning and its charge transport studies” 13th Eurasia Conference on Chemical Sciences, IISc Bangalore from 14th December2014 to 18th December 2014.
  • Khadija Kanwal Khanum, Shruti Hegde, Praveen C. Ramamurthy, “Fabrication of free standing PEDOT:PSS nanofibers mat using electrospinning” 2nd International Conference on Emerging Electronics (ICEE), IISc Bangalore submitted in IEEE from3rd December to 6th December 2014.
  • Arul Varman K, Praveen C. Ramamurthy “Nickel Nanoparticle for improving current Density in Organic Electronic Devices” 2nd International Conference on Emerging Electronics (ICEE), IISc Bangalore submitted in IEEE from3rd December to 6th December 2014.
  • Jagdish A.K, Gangineni Pavankumar, Praveen C Ramamurthy, D Roy Mahapatra, Gopalkrishna Hegde “Localized morphological change induced degradation in organic electronic devices” 2nd International Conference on Emerging Electronics (ICEE), IISc Bangalore submitted in IEEE from3rd December to 6th December 2014.
  • Ashwini N Mallya, Sowmya P and Praveen C Ramamurthy “Organic nanocomposite sensor for detection of Escherichia coli” 2nd International Conference on Emerging Electronics (ICEE), IISc Bangalore submitted in IEEE from3rd December to 6th December 2014.
  • Swathi S K, Praveen C. Ramamurthy “’Understanding evolution of electronic energy band in low turn on voltage DACz polymer diodes” 2nd International Conference on Emerging Electronics (ICEE), IISc Bangalore submitted in IEEE from3rd December to 6th December 2014.
  • Saravana Subbiahraj, Praveen C. Ramamurthy and Giridhar Madras “Zinc, Magnesium and Potassium Neutralized Ionomeric Poly (Vinyl butyral) Films: Dielectric Spectroscopy Studies and Solar Cell Encapsulation Application” Hynes Convention Center and Sheraton Boston Hotel in Boston, Massachusetts from November 30 to 5 December 2014.
  • Sindhu Seethamraju,Praveen C. Ramamurthy, Giridhar Madras “Surlyn Based Barrier Materials for Organic Device Encapsulation” Hynes Convention Center and Sheraton Boston Hotel in Boston, Massachusetts from November 30 to 5 December 2014.
  • Sindhu Seethamraju,Praveen C. Ramamurthy Giridhar Madras “Multi-Scaling of Polymer Nanocomposites for Estimating Gas Diffusivities” Hynes Convention Center and Sheraton Boston Hotel in Boston, Massachusetts from November 30 to 5 December 2014.
  • Saravanan Subbiahraj, Praveen C Ramamurthy and Giridhar Madras “In-situ Synthesis of Graphene-Oxide – Poly(vinyl butyral) Nanocomposite Films for Organic Electronic Device Encapsulation” 8th ECNP International Conference on Nanostructured Polymers and Nanocomposites, Dresden, Germany to be held in Dresden, Germany from September 16 to 19, 2014.
  • Khadija Kanwal Khanum and Praveen C. Ramamurthy “On the enhancement of light harvesting with hierarchical structures using electrosprayed photoactive materials” (ICE?119?2014), ELECTROSPIN, San Francisco, USA from August 4-7, 2014.
  • Saravanan Subbiahraj, Praveen C Ramamurthy and Giridhar Madras “Moisture Barrier Studies of Na+ and Zn2+ Neutralized Ionomeric Films of Poly(vinyl butyral) for Organic Device Encapsulation” 30th International Conference of the Polymer Processing Society (PPS-30) Cleveland, Ohio, USA from June 8-12, 2014.
  • Khadija K. Khanum, Ranjith K, Praveen C.Ramamurthy., “Various Architectures of Electrosprayed Photoactive Materials: A Step towards Light Management” MRS Spring Meeting & Exhibit, San Francisco, California USA from April 21-25, 2014.
  • Khadija K. Khanum, Praveen C.Ramamurthy., “Electrospun Photonics Topography for Organic Photovoltaics” MRS Spring Meeting & Exhibit, San Francisco, California USA from April 21-25, 2014.
  • Murali M.G, Arun D. Rao and Praveen C. Ramamurthy., “Synthesis and characterization of trifluoromethylated benzimidazole and benzo[1,2-b:3,4-b’]dithiophene based donor-acceptor conjugated polymer for polymer solar cells”. MRS Spring Meeting & Exhibit, , San Francisco, California USA from April 21-25, 2014. (Manuscript ID MRSS14-1668-C06-18).
  • Khadija Kanwal Khanum and Praveen C. Ramamurthy “Co-axial electrospinning of PEDOT: PSS fibers: As a precursor for solar-fiber devices” at DAE-BRNS Conference on Organic Devices: The Future Ahead (ODeFA-2014), Bhabha Atomic Research Centre (BARC), Mumbai from March 3 -6 2014.
  • Arul Varman K, Praveen C. Ramamurthy “Significance of processing parameter on the performance of poly(3-hexylthiophane-2,5-diyl) based solar cell” at DAE-BRNS Conference on Organic Devices: The Future Ahead (ODeFA-2014), Bhabha Atomic Research Centre (BARC), Mumbai 3 -6 March 2014.
  • Jagdish A.K, Praveen C Ramamurty, D Roy Mahapatra, Gopal Hegde “Optical simulations of organic photovoltaic structures with ITO nano-pillar electrodes” at DAE-BRNS Conference on Organic Devices: The Future Ahead (ODeFA-2014), Bhabha Atomic Research Centre (BARC), Mumbai from 3 -6 March 2014.
  • Siju CR, Ranjith K, Shivaprakash N.C, Praveen C. Ramamurthy, Sindhu S “Synthesis and Characterization of novel 2,2 di isopropylbenzyl substituted Poly (3,4 propylenedioxythiophene) derivative for Opto-electronic applications” (IUMRS ICA) at IISc, Bangalore, India from December 16-20, 2013.
  • Khadija Kanwal Khanum and Praveen C. Ramamurthy “Nano-net morphology through electrospinning for OPVs” (IUMRS ICA) at IISc, Bangalore, India from December 16-20, 2013.
  • Ashwini N Mallya, Murali M. G., Praveen C Ramamurthy “Polymer nanocomposite for detection of nitrate in water” as poster at International Union of Materials Research Society, Materials Research Society of India- International Conference in Asia- (IUMRS-ICA) at IISc Bangalore India from December 16-20,2013.
  • Ashwini N Mallya, Praveen C Ramamurthy “Selectivity of organic nanocomposite sensor for detection of aldehydes” 7th International Conference on Sensing Technology (ICST 2013) Ref #948201 at Wellington, New Zealand. From December 3 to 5, 2013.
  • Sufal Swaraj, Stefan Stanescu, Nicolas Jaouen, Rachid Belkhou, Swathi SK, Praveen Ramamurthy, “Opportunities at the carbon edge – Morphological charecetrization of organic thin films using soft x-rays” 12th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures at Tsukuba, Japan from November 4 – 8, 2013.
  • Pillai R, Rao A, Mani M, and Ramamurthy P, “Understanding near sunrise and sunset PV system behaviour to identify measures to maximise effective energy yield” at the 12th International Conference on Sustainable Energy Technologies, at Hong Kong from August 26-29 2013.
  • Rao, A., Mani., M., and Ramamurthy, P., “An Experimental Investigation into the Interplay of Wind, Dust and Temperature on Photovoltaic Performance in Tropical Conditions” at the 12th International Conference on Sustainable Energy Technologies”, Hong Kong from August 26-29 2013.
  • Ashwini N Mallya, Murali M. G., Praveen C Ramamurthy “Polymer nanocomposite for detection of nitrate in water” as poster at RSC event, Indo-UK Perspective on Water Quality Threats, Technologies and Options workshop being held at IISc Bangalore India from August 13- 14 2013.
  • Arun D Rao, Suresh Karalatti, Arul Varman K, T Thomas, Praveen C Ramamurthy “Organic solar cell by using vertically aligned nanostructured ZnO nanorods” Abstract Reference No. 630, 39th IEEE Photovoltaic Specialists Conference (PVSC), Tampa Bay, Florida, USA from June 16-21, 2013.
  • Khadija Kanwal Khanum, Ranjith K and Praveen C. Ramamurthy “Effect of Various Solvents on Thiophene Derivative Electrospun Structures” at 3rd FAPS Polymer Congress and MACRO 2013 at IISc, India from May 15-18 2013.
  • Swathi S K, Arun D Rao, Ranjith K, Rajneesh Kumar, S A. Ramakrishna, Praveen C Ramamurthy “Device fabrication of insoluble donor–acceptor–donor structured molecule by pulsed laser deposition- A comparative study” PEN13-PE100-182 International conference on Optics in Precision Engineering and Nanotechnology (ICOPEN2013) Singapore April 9th 11th 2013.
  • Satyajit Gupta, Sindhu Seethamraju, Praveen C Ramamurthy, and Giridhar Madras “Moisture Barrier Hybrid Nano/Composite Films for Organic Device Encapsulation” International Workshop on Advanced Materials (IWAM) RasAl Khaimah, United Arab Emirates from February 24-26 2013.
  • Arul Varman K, Deepak K Mishra, Kirtana M Rajan, Ashwini N Mallya, Praveen C Ramamurthy “Organic Device Electrode Fabricated by Aluminum in Nanopowder and Bulk Form and Effect on Device Properties” IEEE International Conference on Emerging Electronics 2012.
  • Ranjith K, Arun D Rao, Praveen C Ramamurthy “A promising ketone containing alternating copolymer for organic photovoltaics” MRS Fall meeting Boston USA November 25-30 2012.
  • Ranjith K, Swathi S K, Praveen C Ramamurthy “Fullerene functionalized conjugated molecule containing dithienylcyclopentadienone for organic photovoltaics” Ref #O-10 Fifth international conference on electroactive polymers: materials and device (ICEP-2012) at Banaras Hindu University, Varanasi, November 4-9, 2012.
  • Khadija Kanwal Khanum, Praveen C Ramamurthy “Electrospun network structure for organic photovoltaic device” Ref #O-35 Fifth international conference on electroactivepolymers: materials and device (ICEP-2012) at Banaras Hindu University, Varanasi, November 4-9, 2012.
  • Arun D rao, Praveen C Ramamurthy “Device quality film of poly DTCPA and its random copolymer using excimer laser deposition” Ref # P-15 Fifth international conference on electroactivepolymers: materials and device (ICEP-2012) at Banaras Hindu University, Varanasi from November 4-9, 2012.
  • Alex Joseph, S Subramanian, Praveen C Ramamurthy, R Vasant Kumar and C Schwandt “Polymer modified carbon paste electrode for mercury detection in aqueous environmental systems” XXVI International Mineral Processing Congress (IMPC 2012) New Delhi India Ref #685.
  • Ranjith K, Arun D Rao, Praveen C Ramamurthy “Low cost, low band gap polymer based solar cells” Micro Solar Energy Generation and Utilization, Jointly organized by IIT Kanpur and IETE Kanpur Centre from September 3-4, 2011.
  • Satyajit Gupta, Praveen C Ramamurthy, Giridhar Madras “Fabrication of Silicone Functionalized Mesostructured Silica Composites for Encapsulation of Organic-Photovoltaics” International Conference on Advances in Energy Research (ICAER) IITB Mumbai, India from December 9-11 2011.
  • Satyajit Gupta, Praveen C Ramamurthy, Giridhar Madras “Synthesis and characterization of flexible polymer/nanocomposites reinforced with amine and allyl functionalized alumina nanoparticles: potential encapsulants for organic devices” Recent Trends in Materials Chemistry and Engineering (RTMCE – 2011)” organized by Department of Chemistry, RNS Institute of Technology, Bangalore from September 29-30, 2011.
  • Prajwal Kumar, Alex Joseph, S Subramanian, Praveen C. Ramamurthy “Imidazole functionalized polyaniline modified electrodes as lead ion sensor” RTMCE – 2011 RNS Institute of Technology, Bangalore from September 29-30, 2011.
  • Ashwini N Mallya, Yashwant Naik, Praveen C Ramamurthy, H. S. Bhojya Naik “Study of dielectric properties of PANI/Fe3O4-ZnO nanocomposites” RTMCE – 2011 RNS Institute of Technology, Bangalore from September 29-30, 2011.
  • Khadija Kanwal Khanum, Praveen C Ramamurthy “Effect of applied voltage on diameter and morphology of polymer in Electrospinning” RTMCE – 2011 RNS Institute of Technology, Bangalore from September 2 9-30, 2011.
  • Pramod M, Navakanta Bhat, Gaurab Banerjee, Bharadwaj Amrutur, K N Bhat and Praveen C Ramamurthy “CMOS Gas Sensor Array Platform with Impedance Spectroscopy” IEEE Custom Integrated Circuits Conference San Jose, California from September 18 – 21, 2011.
  • Ranjith K, Satyajit Gupta, Swathi S K, Prajwal Kumar, Monalisa Bai and Praveen C Ramamurthy “Organic Photovoltaic Materials” at the Indo-German Frontiers of Engineering Symposium sponsored by DST at Khandala from June 16 to 19 2011.
  • Praveen C Ramamurthy “Organic photovoltaic devices Issues and Challenges” POLYCON at SJCE, Mysore from 25 – 26 April 2011.
  • Alex Joseph, Praveen C. Ramamurthy, S. Subramanian “Imidazole functionalized polyaniline for metal ion sensor: Synthesis, characterization and Cu (II) coordination studies” POSTER presentation in the National Conference on “RoHS Regulations and Chemical Analysis for Compliance (RRCA)” at C-MET, Hyderabad March 8 -9, 2011.
  • Ranjith K, Swathi K, and Praveen Ramamurthy “Synthesis and characterization of donor-acceptor-donor structured polymer as a precursor for organic photovoltaic devices” Paper No.: P_1211 at the 3rd International conference on Multi_functional Materials and Structures (MFMS) September 14-18, 2010 / Jeonbuk Provincical Government, Jeonju, Korea.
  • H. S. Bhojya Naik, Praveen C Ramamurthy, G. S. Yashavanth Kumar, “Studies on synthesis, conductivity and dielectric properties of PANI/Fe3O4-ZnO composite thin films, The 9th International Symposium on Functional ?-Electron Systems (F-?-9) Georgia Institute of Technology in Atlanta, Georgia, United States, from May 23rd to 28th , 2010.
  • Priya A. Hoskeri, Praveen C. Ramamurthy, C.M. Joseph, N.H. Ayachit Poster presentation “Optical and structural studies on spin coated cobalt phthalocyanine thin films” Nanotech symposium on “Organic photovoltaics” Dayanand Sagar College of Engineering, Bangalore November 19th-20th 2009.
  • Satyajit Gupta, Praveen C Ramamurthy, Giridhar Madras “Synthesis and characterization of flexible polymer/nanocomposites reinforced with amine and allyl functionalized alumina nanoparticles: potential encapsulants for organic devices” P3.04 Poster at the national metallurgists day-annual technical meeting 2010.
  • Ashwini N Mallya, Yashwant Naik, Praveen C Ramamurthy “Study of di electric properties of PANI/Fe3O4-ZnO nanocomposites” P3.05 Poster at the national metallurgists day-annual technical meeting 2010.
  • Prajwal Kumar, Ranjith K, Satyajit Gupta, Praveen C. Ramamurthy “Electrochemical copolymerization and characterization of thiophne derivatives: a precursor to photovoltaic devices” P3.12 Poster at the national metallurgists day-annual technical meeting 2010.
  • Swathi S. K, Kirtana Rajan, Arul K. Varman, Praveen C. Ramamurthy “Morphology of electrode deposited using Aluminium nanoparticles” P3.33 Poster at the national metallurgists day-annual technical meeting 2010.
  • Monalisa Bai, Swathi S K, Ranjith K, Prajwal Kumar, Praveen C Ramamurthy “Structural Characterization of Electroactive Organic crystals for Photovoltaic application” C3 oral presentation at the national metallurgists day-annual technical meeting 2010.
  • Ranjith K, Prajwal Kumar, Swathi S K, Praveen C. Ramamurthy ”Synthesis and Characterization of Donor-Acceptor-Donor Structured Polymer as a Precursor for Organic Devices” P3.14 Poster at the national metallurgists day-annual technical meeting 2010.
  • Sumeet R. Mishra, Swathi S, Ranjith K, Prajwal Kumar, Praveen C. Ramamurthy “Organic device architecturing by electrospinning conducting polymers” P3.34 Poster at the national metallurgists day-annual technical meeting 2010.
  • Ramamurthy, P.C., Malshe, A.M., Harrell, W.R., Gregory, R.V., McGuire, K., and Rao, A.M. “Polyaniline / single-walled carbon nanotube composite electronic device.” Poster presented at the International Semiconductor Device Research Symposium. Sponsored by Institute of Electrical and Electronics Engineering . Held at Washington, DC. 10-12 Dec. 2003.
  • Ramamurthy, P.C., Harrell, W.R., Gregory, R.V., Sadanadan, B., and Rao, A.M. “Mechanical properties of polyaniline / multi-walled carbon nanotube composite films.” Presented at the MRS Symposium – Q 10.3. Sponsored by the Materials Research Society. Held at Boston, MA. 1-5 Dec. 2003.
  • Ramamurthy, P.C., El Moustafid, T., Malshe, A.M., Harrell, W.R., Gregory, R.V. “Poly(3,4-ethylenedioxythiophene) / polypyrrole copolymer electronic device.” Poster presented at the 55th Southeast Regional Meeting of the American Chemical Society. Sponsored by the American Chemical Society. Held at Atlanta, GA. 16-19 Nov. 2003.
  • Ramamurthy, P.C., Malshe, A.M., Harrell, W.R., Gregory, R.V., McGuire, K., and Rao, A.M. “Current transport mechanisms in polyaniline/single-walled carbon nanotube composite films.” Poster presented at the 11th Foresight Conference on Molecular Nanotechnology. Sponsored by Foresight Institute. Held at San Francisco, CA. 9-12 Oct. 2003.
  • Ramamurthy, P.C., Malshe, A.M., Harrell, W.R., Gregory, R.V., McGuire, K., and Rao, A.M. “Electronic device fabricated from polyaniline / single-walled carbon nanotube composite.” Presented at the MRS Symposium – M 4.3. Sponsored by the Materials Research Society. Held at San Francisco, CA. 21-25 Apr. 2003.
  • Ramamurthy, P.C., Tewary, A.K., Hardaker, S.S., and Gregory, R.V. “Thermal characterization of high molecular weight leucoemeraldine base polyaniline.” Poster presented at the Division of Polymer Chemistry 224th ACS National Meeting. Sponsored by American Chemical Society. Held at Boston, MA. 18-22 Aug. 2002.
  • Ramamurthy, P.C., Harrell, W.R., and Gregory, R.V., Sadanadan, B., Rao, A.M. “Electronic properties of polyaniline/carbon nanotube composites.” Poster presented at the International Conference on Science and Technology of Synthetic Materials (ICSM). Sponsored by Research Center for Theoretical Physics and Synthetic Metals. Held at Shanghai, China. 29 Jun. -5 Jul. 2002.
  • Various posters presented at NSF site visits to CAEFF in 1999, 2000, 2001, 2002, 2003, and 2004 and at Clemson Annual Research Forum in 2003 and 2004.
  • Siddaramaiah, Ramamurthy, P.C., and Mallu, P. “Synthesis and characterization of castor oil based PU / PS interpenetrating polymer networks” Presented at the National Seminar on Advances in Polymer Technology Sponsored by Cochin University. Held at Cochin, India 8-9 Feb. 1996.