Miscibility and Physical Properties of Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)/Poly(ethylene oxide) Binary Blends

✍ Scribed by Fang Yu; Tomohiro Nakayama; Nobuo Nakamura; Kenji Katsumata; Pengju Pan; Yoshio Inoue

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 656 KB
• Volume: 294
• Category: Article
• ISSN: 1438-7492
• DOI: 10.1002/mame.200900159

✦ Synopsis

Abstract

In order to improve some inferior physical properties of bacterial poly(3‐hydroxybutyrate__‐co‐3‐hydroxyhexanoate) [P(3HB‐co‐3HHx)] by blending with PEO, the miscibility, spherulite morphology, crystallization behavior and mechanical properties of P(3HB‐co‐3HHx)/PEO binary biodegradable polymer blends were investigated. A good miscibility between P(3HB‐co‐3HHx) with a 3HHx unit content of 11 mol‐% and PEO in the amorphous state was found when the PEO weight fraction was 10 wt.‐%, while the miscibility decreased dramatically when the PEO weight fraction exceeded 20 wt.‐%. Strongly depending on the blend composition, the mechanical properties of P(3HB‐co‐__3HHx) was found to be significantly improved by blending with PEO with a weight fraction of ≈5–17.5 wt.‐%.

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