International Science Community Association Research Journal of Chemical Sciences 2231-606X 11 1 2021 02 18 Influence of potassium hydrogen phthalate on thermal, mechanical, structural and surface properties of Chitosan/PVA blend films 15 24 EN Sandala Anuradhabai 1 S.N.Vanita Pharmacy Mahavidyalaya, Tarnaka, Hyderabad-500007, Telangana, India Yasaswi P. Soma 2 S.N.Vanita Pharmacy Mahavidyalaya, Tarnaka, Hyderabad-500007, Telangana, India Ravindernath A. 3 Faculty of Pharmacy, Osmania University, Hyderabad- 500007 Telangana, India Patnaik K.S.K. Rao 4 Department of Chemical Engineering, Dire Dawa Institute of Technology, P.box.1362, Dire Dawa University, Ethiopia Elnaeim Omar E.B. 1 Department of Chemistry and Biology, Faculty of Education University of Al-Butana, Rufaa, Sudan Ragab Yousif Ali 2 Department of Chemical Engineering and Chemical Technology, Faculty of Engineering and Technology, University of Gezira, Medani, Sudan Vanjeri Vinayak N. 1 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India Goudar Naganagouda 2 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India Hiremani Vishram 3 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India Gasti Tilak 4 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India Sataraddi Sarala P. 5 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India Masti Saraswati P. 6 Department of Chemistry, Karnatak Science College, Dharwad - 580 001, India Chougale Ravindra B. 7 P G Department of Studies in Chemistry, Karnatak University, Dharwad - 580 003, India > Research Paper 2020 8 13 2021 02 18 The Potassium hydrogen phthalate (KHP) doped Chitosan/Polyvinyl alcohol (CPK) blended films were prepared by solution casting technique. The different instrumental methods were utilized to investigate the influence of KHP on Chitosan/Polyvinyl alcohol blended films. The interaction and miscibility of prepared blend films were confirmed by Infrared Spectroscopy and Differential Scanning Calorimetry (DSC) analysis. The CPK blend films showed higher thermal stability than the Chitosan/Polyvinyl alcohol (CP) blend film. The mechanical properties of the CP blend films were improved after the addition of KHP. Increased amorphous nature of CPK blend films was observed through the X-ray diffraction (XRD) patterns. The surface roughness was analyzed by Atomic Force Microscopy (AFM) suggest that the KHP exists in the films owing to strong interactions. The hydrophobic nature of the CP blend was enhanced after the addition of KHP, which is verified by measuring the water contact angles. These investigated properties fitted with the properties which are applicable for the packaging and coating applications. Copyright@ International Science Community Association