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Journal of Macromolecular Science, Part A
Pure and Applied Chemistry
Volume 43, 2006 - Issue 4-5
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Original Articles

Thermal and Morphological Studies on Poly(Methyl Methacrylate)/Thermoplastic Polyurethane Blends

P. Poomalai Central Institute of Plastics Engineering and Technology, Mysore, India
&
Siddaramaiah Department of Polymer Science and Technology, S.J. College of Engineering, Mysore, IndiaCorrespondence[email protected]
Pages 695-702 | Received 01 Jun 2005, Accepted 01 Sep 2005, Published online: 07 Feb 2007
 
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Abstract

Poly(methyl methacrylate) (PMMA) and thermoplastic polyurethane (TPU) blends in different compositions viz., 95/05, 90/10, 85/15 and 80/20 (by wt/wt% of PMMA/TPU) have been prepared by melt mixing using a twin screw extruder. The thermal stability of these blends has been characterized by thermogravimetric (TG) analysis. All the blends are stable up to 381°C and complete degradation occurs at 488°C. A slight improvement in thermal stability was noticed with an increase in TPU content in the blends. Surface morphology of the blends has been studied by an optical microscope. Optical microphotographs revealed two‐phase morphology for all the blends.

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