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Vol. 210, Issue 3, March 2017, pp. 32-37




Preparation, Characterization and Spectroscopic Investigations of PEOX-PVOH Blend Films

1,* Manohara S. R., 1 Rajashekara T. N., 1 Shubha A., 1 Subhranshu S. S., 2 Murugendrappa M. V. and 3 Navya P. N.

1 Nano-Composites and Materials Research Lab, Department of Physics, Siddaganga Institute of Technology, Tumakuru-572103, Karnataka, India
2 Department of Physics, BMS College of Engineering, Bengaluru-560019, Karnataka, India
3 Department of Biotechnology, Siddaganga Institute of Technology, Tumakuru-572103, Karnataka, India
* Tel.: +91-816-228 2696, fax: +91-816-228 2994

* E-mail: sr.manohara@yahoo.com


Received: 9 January 2017 /Accepted: 3 March 2017 /Published: 31 March 2017

Digital Sensors and Sensor Sysstems


Abstract: A stable and free standing polymer blend films of poly (2-ethyl-2-oxazoline) [PEOX] and poly(vinyl alcohol) [PVOH] were prepared by solution casting technique at different weight percentages (70/30, 50/50, 30/70). The prepared blends were characterized by scanning electron microscopy (SEM), and ultraviolet-visible (UV-Vis) and Fourier transform infrared (FTIR) spectroscopy. Various optical properties such as absorption band edge, direct and indirect band gap, and optical activation energy were obtained by UV-Vis spectral analysis. FTIR analysis confirms the specific hydrogen bonding between –CH3 groups of PEOX and –OH groups of PVOH, and also the hydrophilic nature of the blends.


Keywords: Polymer blend, Solution casting, Band edge, Band gap, Optical spectroscopy.


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