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

作者：Yu Fang; Nakayama Tomohiro; Nakamura Nobuo; Katsumata Kenji; Pan Pengju; Inoue Yoshio^*

来源：Macromolecular Materials and Engineering, 2009, 294(12): 868-876.

DOI：10.1002/mame.200900159

• biodegradable
• blending
• mechanical properties
• miscibility
• spherulites

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 approximate to 5-17.5 wt.-%.

• 出版日期2009-12-10