Studies on the Compatibility of Pullulan – Carboxymethyl Cellulose Blend Using Simple Techniques

Guru, G.S., and Reasad, P., and Shivakumar, H.R., and Rai, S.K., (2008) Studies on the Compatibility of Pullulan – Carboxymethyl Cellulose Blend Using Simple Techniques. Malaysian Polymer Journal, 3 (2). pp. 13-23. ISSN 18237789

Preview

PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
449Kb

Affiliations

KVG College of Engineering, India. Dept. of Chemistry
KVG College of Engineering, India. Dept. of Chemistry
KVG College of Engineering, India. Dept. of Chemistry
University of Mysore, India.Dept of Polymer Sciences

Abstract

Miscibility studies of Pullulan – Carboxymethyl cellulose in common solvent water were carried out at 100/0, 80/20, 60/40, 50/50, 40/60, 20/80 and 0/100 (v/v%) blend compositions. Using Ubbelohde viscometer, Ultrasonic Interferometer and Specific gravity bottle, viscosity, ultrasonic velocity and density were measured at 30 and 40oC respectively. Chee’s and Sun’s interaction parameters (μ and α) were calculated by using the viscosity data. These values revealed that, the blend was semi-compatible. The obtained results were confirmed by ultrasonic velocity and density studies. Further, blend films were prepared by using 1% blend solutions. Solid state compatibility of the blend was then confirmed by Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) techniques. The SEM and FTIR results revealed that blend was miscible only when Pullulan content is 60% and above. Change in temperature had no effect on the miscibility of Pullulan– Carboxymethyl cellulose blend.

Item Type:

Journal

Additional Information:

The authors express their gratitude to Dr. Kurunji Venkataramana Gowda, Founder President, AOLE, Sullia, Dr. S. G. Gopalakrishna, Principal, KVG College of Engineering, Sullia and Dr. A. N. Shetty, NITK, Surathkal, for providing infrastructure facility.

Keywords:

blends, Pullulan, Carboxymethyl cellulose, viscosity, ultrasonic, SEM., FTIR.

Subjects:

T Technology, Engineering

ID Code:

6169