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Phase behavior and miscibility in blends of poly(sebacic anhydride)/poly(ethylene glycol)

Paper ID Volume ID Publish Year Pages File Format Full-Text
13504 861 2002 6 PDF Available
Title
Phase behavior and miscibility in blends of poly(sebacic anhydride)/poly(ethylene glycol)
Abstract

In this research, poly(sebacic anhydride) was synthesized via melt-condensation. The polymer was then blended with poly(ethylene glycol) in various ratios by solvent casting, to obtain the desired polymer blends. A differential scanning calorimeter was employed to investigate the crystalline behavior of the blends. Blends with under 10% poly(ethylene glycol) were found to consist of two partially miscible polymers in the amorphous phase. This compatibility of the two polymers may induce the crystallization of the poly(sebacic anhydride) component from decreasing the glass transition temperature of the poly(sebacic anhydride) component in the blending system due to the presence of poly(ethylene glycol) chain segments. Furthermore, phase separation occurred and the crystallinity of poly(sebacic anhydride) diminished when at least 20% poly(ethylene glycol) was present in the blends. These results were verified by the variation in the absorptions of carbonyl groups in infrared spectra; these spectra exhibit the changes in crystallinity of poly(sebacic anhydride) in the blends.

Keywords
Poly(sebacic anhydride); Poly(ethylene glycol); Crystalline; Blending; Phase separation
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Phase behavior and miscibility in blends of poly(sebacic anhydride)/poly(ethylene glycol)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 23, Issue 11, June 2002, Pages 2353–2358
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us