本論文主要研究方向是以生物可分解性高分子薄膜與二氧化鈦poly(butyleneadipate co terephthalate)/titanium dioxide (PBAT/TiO2) ，以溶膠凝膠法將有機-無機材料以自我組成方式成膜，將不同比例的TiO2加入PBAT製成poly(butyleneadipateco\terephthalate)/titanium dioxide (PBAT/TiO2)混成薄膜，探討其熱穩定性質、結晶型態、結構、親水性，及其力學性質，由SEM結果顯示薄膜上的微孔洞轉變成類似泡綿體的結構，使用溶膠凝膠法製備有機-無機混成薄膜會使TiO2無機網狀結構與PBAT高分子鏈之間產生強大的作用力，以至於改善其親水性和熱性質。依據XRD的結果顯示，在PBAT中加入TiO2並不會改變PABT本身的結構，在小角X-ray的量測，TiO2的網狀結構，非呈現聚集狀態，而是整齊的排列在PABT的高分子基材上，因此，能在不改變PABT的結晶度與力學性質的情況下，得到有機-無機混成膜。其力學性質可由有機-無機基混成薄膜和未混成薄膜的應力-應變曲線得知，隨著TiO2溶液濃度增加，混成薄膜的應變和斷裂伸長量隨之增加，在25 wt% TiO2混摻薄膜中會有最大的斷裂伸長量，結果得知，呈透明狀的混成薄膜不會損失PBAT原有的結晶度與機械性質。

Organic-inorganic hybrids based on poly(butyleneadipate-co-terephthalate)/titanium
dioxide (PBAT/TiO2) hybrid films were prepared by an in situ sol-gel process. The PBAT/ TiO2 hybrid membranes were prepared in various PBAT to TiO2 ratios. Their crystallization and mechanical properties including the morphological features, structure, hydrophilicity, and thermal stability were investigated. The results showed that macrovoids underwent a transition to sponge like membrane structure. After sol-gel transition, the strong interaction between inorganic network and polymeric chains led to the improvement of hydrophilicity and thermal stability. According to X-ray diffraction measurements, the crystal structure of hybrids films revealed that the presence of TiO2 did not change the crystal structure of PBAT. TiO2 networks are uniformly dispersed into PBAT matrix and no aggregation of TiO2 networks in the hybrid films was observed in small angle X-ray scattering measurements. Thus, the hybrid membranes could be obtained without changing the crystallinity and mechanical properties of PBAT. The hybrid films, as well as pure PBAT film, showed in stress–strain relation. The strain and breaking elongation of the hybrids increased with increasing TiO2 content. It is interesting that the breaking elongation of the samples was the highest at 25 wt% TiO2, higher than that of pure PBAT film. Consequently, the transparent hybrid films could be obtained without any loss in either crystallinity of PBAT or mechanical properties.

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