Abstract
Polymer blends have been obtained in the form of dimensionally stable and free standing films and their properties were characterized by different techniques. FTIR analysis and Raman spectroscopic analysis cleared the hydrogen bonding intermolecular interaction between –CONH2 groups in Poly Acrylamide (PAM) and C-O-C and –CH2OH group in Poly Ethylene Oxide (PEO). From Differential Scanning Calorimeter (DSC) the study shows that crystallinity is increasing with PEO wt%. From polymer interaction parameter we also show that the polymer blend is miscible. Thermal stability of films is investigated by Thermo Gravimetric Analysis (TGA) and derivative Thermo Gravimetric Analysis (DrTG). From UV-Vis absorption spectra, absorption band edge, direct/ indirect band gap and optical activation energy have been calculated.
Highlights
Blending of polymers is an attractive as well as an important route for providing new materials with desirable properties with economically low cost [1]
FTIR spectroscopy of blend films were carried out to detect peak shifts, which may be due to the interaction, like hydrogen bonding, between two polymers
Infrared spectroscopy is a fundamental technique to find out the presence of hydrogen bond, which is characterized by changes in absorption bands of functional groups involved in the formation of hydrogen bond [32]
Summary
Blending of polymers is an attractive as well as an important route for providing new materials with desirable properties with economically low cost [1]. The study of blend properties is very important to find its new application in the field of biomedical and pharmacy [3] [4]. Due to increase in the applications of polymer in biomedical field, study of water soluble polymer like Poly (ethylene oxide) (PEO), poly (vinyl alcohol) (PVA), and polyacrylamide (PAM) has high interest [9] [10]. The intermolecular interaction between two polymers chain of PAM and PEO was explored by the means of FTIR and Raman spectra, which had been quite helpful for the study of compatibility and miscibility of blends. These results are correlated with the results obtained from the other characterization techniques
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