Organic-inorganic hybrid biodegradable materials containing silica as inorganic component and poly (butylene succinate-co-adipate) (PBSA) as organic component were successfully prepared by sol-gel method. Ultraviolet-visible spectra showed that transparency of the hybrid was higher than or comparable to that of polyethylene terephthalate (PET), but the hybrid showed a lower tensile strength at break than PBSA. Thermogravimetry/differential thermal analysis (TG/DTA) showed that heat resistance of the hybrid was improved. This result indicated that the organic and inorganic segments were well dispersed in the structure of the hybrid at the molecular level.

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