Name : L.Karunanayake, PhD
Position : Senior Professor
Contact information : Email Address: laleen@sjp.ac.lk
Office location: Room No-501, Department of Polymer Science, 5th floor, New Faculty Complex.
Office hours : 08:30 – 16:30
Teaching : Polymers Science & Technology
Work experiences : Research Officer – Rubber Research Institute of Sri Lanka (1989-2000), University of Sri Jayewardenepura (2000-2022)
Research interests : Polyurethane chemistry & technology, Polymer nano-composites, Cellular Polymers and Natural Materials
Selected Recent Research Publications :
(2021-2022)
a) Cellulose microfibres from traditional rice straw: Physicochemical properties and analytical characterization,A Ratnakumar, A Samarasekara, DAS Amarasinghe, L Karunanayake (2021) Materials Today: Proceedings
b) Computational development and validation of a representative MDI-BDO– based polyurethane hard segment model,B Karunarathna, RS Jayakody, L Karunanayake, KK Govender (2021) Journal of Molecular Modeling 27 (2), 1-20
c) HUMIDITY SENSING POTENTIAL OF A MICROCRYSTALLINE CELLULOSE SHEET, ANNE D. FERNANDOPULLE, LALEEN KARUNANAYAKE, DON A. S. AMARASINGHE, ADIKARI M. P. B. SAMARASEKARA and DINESH ATTYGALLE, Cellulose Chem. Technol., 55 (5-6), 469-475(2021)
d) Individualization of Nanofibrillated Cellulose from Sri Lankan Rice Straw: Structural Characteristics and Thermal Properties, A Ratnakumar, AMPB Samarasekara, DAS Amarasinghe, L Karunanayake, 2021 Moratuwa Engineering Research Conference (MERCon), 37-42
e) Microfibrillated Cellulose Fabrication and Characterization from Sri Lankan Rice Straw: A Comparison between Traditional and Hybrid Variety,2021 Moratuwa Engineering Research Conference (MERCon), 164-168
f) Characterization of Blends of Virgin Nitrile Rubber and Compounded Nitrile Rubber Latex Waste Reclaimed with Urea: Part II–Physico–Mechanical Properties, KIDP Perera, DG Edirisinghe, L.Karunanayake (2021), Journal of Advanced Chemical Sciences, 733-737
g) Waste mica as filler for natural rubber latex foam composites, S. A. V. Dananjaya,Y.R. Somarathna, L. Karunanayake, S. Siriwardena (2022) Journal of Polymer Research 29:71
h) Effect of Sonication Time on Cellulose Nanofiber Disintegration from Locally Available Rice Straw, A Ratnakumar, BAMP Samarasekara, SDA Amarasinghe, L.Karunanayake (2022) Macromolecular Symposia 402 (1), 2100425
i) The influence of particle size on the extraction of cellulose nanofibers using chemical-ultrasonic process, A. Ratnakumar, A.M.P.B. Samarasekara, D.A.S. Amarasinghe, L. Karunanayake, Materials Today: Proceedings 9 May 10, 2022
Awards : Presidential Award, NRC Merit Award and PRI Merit Award